When working in the fume hood, it is important to make an effort to a) minimize clutter and only keep items in the hood if they are being used.
A fume hood can be described as a ventilation hood present inside labs where experiments are done using hazardous substances such that they are prevented from inhalation by the researcher.
As the substances being researched in a fume hood are hazardous, it is important that only those chemicals be kept inside the fume hood that is being used by the researcher at that time. Otherwise, it could happen that these chemicals might react with each other and prove to be more toxic. Special care needs to be taken when working with the chemicals inside the fume hood.
Although a part of your question is missing, you might be referring to this question:
Choose the best option:
When working in the fume hood, it is important to make an effort to minimize
a) minimize clutter and only keep items in the hood if they are being used
b) chemicals in the fume hood unless instructed to do so.
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what is the final chloride ion concentration when 34. g zncl2 is dissolved in enough water to make 696. ml of solution? the molar mass of zncl2 is 136.3 g/mol.
Final chloride ion concentration is 1.03 mol / Cl- L when 34. g of zncl2 have been dissolved in 696. ml of water.
What is chloride ion ?The anion Cl⁻ is the chloride ion. When the element chlorine gains an electron or when a compound such as hydrogen chloride is dissolved in water or other polar solvents, it is formed. Chloride salts like sodium chloride are frequently very soluble in water.It is an electrolyte found in all bodily fluids that is responsible for maintaining acid/base balance, transmitting nerve impulses, and regulating liquid flow into and out of cells.Less frequently, the word chloride may appear in the "common" name of a chemical compound containing one or more covalently bonded chlorine atoms.First we need to convert zncl2 to moles:
34 g zncl2 x 1 mole zncl2/ 136.3 g = 0.24 mol zncl2
Given the molecular formula, we have three chlorine atoms for every mole of zncl2
0.24 mol zncl2 x 3 mole Cl-/ 1 mole zncl2 = 0.72 mol Cl-
Now we will divide this by the volume of the solution as liters
696 ml x 1 L/ 1000 mL = 0.696 L
Concentration = 0.72 mol Cl- / 0.696 L = 1.03 mol / Cl- L
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How is an ion formed short answer?.
Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions.
Ions, any atom or group of atoms that bears one or more positive or negative electrical charges. Positively charged ions are called cations; negatively charged ions, anions. By combination of ions with other particles; or by rupture of a covalent bond between two atoms in such a way that both of the electrons of the bond are left in association with one of the formerly bonded atoms. Ions are formed when the number of protons in an atom does not equal the number of electrons.
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How does milk of magnesia magnesium hydroxide cure an upset stomach?.
magnesium hydroxide is an osmotic laxative, that is that it works by pumping water into the intestines, which helps in producing bowel movement.
This medicine is used to relieve sporadic constipation. It is an antacid that reduces the stomach's acid production. Magnesium hydroxide lowers stomach acid and raises gut water levels, which may encourage bowel motions. Magnesium hydroxide is a laxative used to treat sporadic constipation. Magnesium hydroxide is also employed as an antacid to treat heartburn, indigestion, and sour stomach.
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What is proper MLA citation example?.
The author's last name and the page number from which the quotation or paraphrase is extracted are used in MLA citations, for example : (Sam 163). Do not include a page number in the parenthetical citation if the source does not utilize page numbers: (Sam)
In the liberal arts and humanities, MLA (Modern Language Association) style is most frequently used to compose papers and cite sources. Brief parenthetical citations in the text that are keyed to an alphabetical list of the works cited at the end of the work are a feature of the MLA style.
In the humanities and liberal arts, the MLA style is often used. The manuscript text and parenthetical citations, often known as in-text citations, are formatted according to MLA standards. It also serves as the structure for the list of references and works cited section at the conclusion of the essay. MLA format prioritizes conciseness and clarity. It is advantageous for you to be familiar with both primary writing formats as a student writer, and this section will define the key components of MLA as well as provide particular instances of frequently used references.
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Draw the structure of the nucleophile required to form each of the following compounds after reacting with 1-iodobutane in an SN2 reaction:
(pic)
Sodium propeoxide compounds reacting with 1-iodobutane in an SN2 reaction will form 1 ethoxy propone..
A bond has been broken as well as another was created simultaneously during the nucleophilic substitution process known as the SN2 reaction.
One kind of molecule will react with another kind of molecule then it will form another kind of compound, such process is named as chemical reaction.
When 1-iodobutane is treated with sodium prope oxide then it will form 1 ethoxy propone.
The reaction can be expressed as:
The question is incomplete, the complete question is:
Draw the structure of the nucleophile required to form each of the following compounds after reacting with 1-iodobutane in an SN2 reaction:
(i) 1-ethoxy propane
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Calculate the standard enthalpy of formation of carbon disulfide (cs2) from its elements given that.
The standard enthalpy of formation of carbon disulfide (CS₂) from it's elements is; ΔHorxn = 85.3kJ/mol
To calculate the standard enthalpy of formation of Carbon disulfide (CS₂) from it's elements, given the following;
C(graphite) + O₂(g) → CO₂(g); .............eqn(1)C(graphite) + O₂(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/molC(graphite) + O2(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/molS(rhombic) + O₂(g) → SO₂(g) ..............eqn(2)C(graphite) + O₂(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/molS(rhombic) + O₂(g) → SO₂(g) ..............eqn(2)ΔHorxn = −296.4 kJ/molC(graphite) + O₂(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/molS(rhombic) + O₂(g) → SO₂(g) ..............eqn(2)ΔHorxn = −296.4 kJ/molCS2 + 3O₂(g) → CO₂(g) + 2SO₂(g)C(graphite) + O₂(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/molS(rhombic) + O₂(g) → SO₂(g) ..............eqn(2)ΔHorxn = −296.4 kJ/molCS₂ + 3O₂(g) → CO₂(g) + 2SO₂(g) ΔHorxn = −1073.6 kJ/molWe need to manipulate the set of equations above such that we have C(graphite) and S(rhombic) on the reactant side of the net equation and Carbon disulfide (CS₂).
We need to multiply equation (2) by 2 so that we now have 2SO₂ on the product side.
Also, we need to multiply equation (3) by -1 so that the CS₂ moves to the product side of the equation; so that we have;
C(graphite) + O₂(g) → CO₂(g); .............eqn(1)
C(graphite) + O₂(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/mol
C(graphite) + O₂(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/mol2S(rhombic) + 2O₂(g) → 2SO₂(g) ........eqn(2)
C(graphite) + O₂(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/mol2S(rhombic) + 2O₂(g) → 2SO₂(g) ........eqn(2)ΔHorxn = −296.4 kJ/mol × 2 = -592.8kJ/molC(graphite) + O₂(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/mol2S(rhombic) + 2O₂(g) → 2SO₂(g) ........eqn(2)ΔHorxn = −296.4 kJ/mol × 2 = -592.8kJ/molCO₂(g) + 2SO₂(g) → CS₂ + 3O₂(g)C(graphite) + O₂(g) → CO₂(g); .............eqn(1)ΔHorxn = −393.5 kJ/mol2S(rhombic) + 2O₂(g) → 2SO₂(g) ........eqn(2)ΔHorxn = −296.4 kJ/mol × 2 = -592.8kJ/molCO₂(g) + 2SO₂(g) → CS₂ + 3O₂(g)ΔHorxn = −1073.6 kJ/mol × -1 = 1073.6kJ/molTherefore, the net equation is the algebraic sum of all the equations; so that we get the enthalpy as;
C(graphite) + 2S(rhombic) → CS₂
ΔHorxn = (-395.5 - 592.8 + 1073.6) kJ/mol
ΔHorxn = 85.3kJ/mol.
Therefore, the standard enthalpy of formation of carbon disulfide (CS₂) from it's elements is ΔHorxn = 85.3kJ/mol
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[THIS IS AN INCOMPLETE QUESTION. THE COMPLETE QUESTION IS:
Calculate the standard enthalpy of formation of carbon disulfide (CS2) from it's elements, given that C(graphite) + O2(g) → CO2(g) ΔH o rxn = −393.5 kJ/mol S(rhombic) + O2(g) → SO2(g) ΔH o rxn = −296.4 kJ/mol CS2 + 3O2(g) → CO2(g) + 2SO2(g) ΔH o rxn = −1073.6 kJ/mol ]
if your silver chloride undergoes extensive photodecomposition before you determine its mass will your results be high or low?
The Ag will weigh less than the AgCl and your results will be poor because photodecomposition releases Cl2 from AgCl according to the equation 2AgCl ==> 2Ag + Cl2.
A chemical reaction in which photons break down the molecules of a chemical compound is known as photodissociation, photolysis, photodecomposition, or photofragmentation. It is described as occurring when one or more photons interact with a single target molecule. It is not just visible light that causes photodissociation. a chemical compound being broken down using photons or light energy. For instance, under the influence of light, the water molecule underwent photodecomposition during photosynthesis. The hydrogen binds to an acceptor as a result of photon absorption, releasing the oxygen. With the help of polymer stabilizers, which are frequently used, photodegradation of plastics and other materials can be prevented. Antioxidants are among these additions; they stop the process of deterioration.
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What is the molecular formula of boron and hydrogen?.
BH³. A boron-hydrogen compound's empirical formula is BH3. It has a 27.7 g/mol molar mass.
Where can you find hydrogen?In the earth's subsurface, there is just free hydrogen. The majority of hydrogen is found in stars and gas giant planets. Hydrogen dominates the composition of the Sun. The pressure is so intense in the inside of stars that hydrogen atoms are changed into helium atoms.
Can hydrogen water be consumed?However, they are unsure if its advantages outweigh those of drinking regular water or being hydrated in general. Hyponatremia, which can be fatal, can result from excessive water intake.
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glycogen is chemically a reducing polysaccharide. why could you make the argument that physiologically glycogen is not a reducing sugar?
By storing glucose while rates are elevated and releasing it when levels are low, glycogen acts as the body's principal blood glucose buffer.
What does the scientific term "chemical" mean?A chemical is any substance whose composition is known. A chemical always contains of the same "substance," to put it another way. Water is one of the substances found in nature. Chlorine and other chemicals are generated (used for bleaching fabrics or in swimming pools).
What does the term chemically same mean?Chemical similarity, also known as molecular similarity, is the commonality of chemical elements, molecules, or chemical compounds in terms of their structural or functional properties, i.e., the impact that the chemical component has had on reaction ( 1 in inorganic or biological environments.
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How many more erroneous manually filed returns will there be than erroneous electronically filed returns?.
Tax returns submitted manually have such a 20% chance of being inaccurate, whereas those submitted electronically have such a 0.05% probability.
What does the term "electronic transmission" mean?The movement of data or information via a recognized electronic data interchange system, such as computer networks and modems, is referred to as "electronic transmission." Physical documents are represented by digital records (even if they originated in digital format)
Does "electronic" refer to "online"?The movement of data or information via a recognized electronic data interchange system, such as computer networks and modems, is referred to as "electronic transmission."
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A mixture consists of three gases, A, B, and C. The partial pressure of A is 5.1 Pa, of B is 1.5 Pa, and of C is 1.2 Pa. The total pressure of the mixture is ____________________ Pa.
7.8
A, B, and C are the three gases that make up a mixture. 5.1 Pa, 1.5 Pa, and 1.2 Pa respectively make up the partial pressures of A, B, and C. 7.8 Pa is the mixture's total pressure.
What in science is a mixture?Three or more distinct, pure components come together to form a combination. Hazardous and homogeneous mixtures are the two types of mixtures. While homogeneous mixtures have a constant appearance throughout, heterogeneous mixtures have unique features.
What are a mixture and an illustration?A mixtures is a chemical in chemistry that is comprised of two or more simpler components. These materials could be chemical components or elements. A mixture of liquid, sediments, or gases may be produced. As an illustration, adding sugar to water results in a
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What are the three types of reduction?.
Three Types of Reductions are Removal of oxygen, addition of hydrogen and gain of electrons.
Reduction involves the transfer of electrons from one species to another. It can be considered as the removal of oxygen, the addition of hydrogen, or the gain of electrons.
Removal of oxygen:
Metal ores which are oxides are reduced to the metal - this is how iron is made from iron ore. The reducing agent is carbon monoxide.
Addition of hydrogen:
Aldehydes and ketones can be reduced to primary or secondary alcohols respectively using aqueous sodium borohydride. This is a source of H− ions which bring about the reduction.
Gain of electrons:
The formation of non-metal ions from the corresponding element, for example during electrolysis.
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Is potassium and oxygen ionic or covalent?.
The ionic compound potassium oxide is created when potassium and oxygen are combined..
How can an ionic substance be recognized?Ionic bonding will typically be present in compounds where a metal is bound to either a non-metal or indeed a semi-metal. Molecular compounds are those that contain just non-metals or semi-metals combined with non-metals and exhibit covalent bonding.
How are ions bound together?The complete transfer of certain electrons of one atom to another results in the formation of an ionic connection. A negatively charged ion known as a cation results from an atom losing one or maybe more electrons. An anion, or negatively charged ion, is created when an atom gains one or more electrons.
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For the following set of atoms and ions, arrange the members in order of decreasing size: Rank items from largest to smallest. To rank items as equivalent, overlap them.
Co3+ , Fe3+, Fe2+
The following set of atoms and ions, arrange the members in order of decreasing size: Rank items from largest to smallest : Fe²⁺ > Fe³⁺ > Co³⁺.
The electronic configuration of Co³⁺ is 3d⁶ 4s⁰. The electronic configuration Fe²⁺ is 3d⁶ 4s⁰ and the electronic configuration of Fe³⁺ is 3d⁶ 4s⁰. atomic size decreases as we move from left to right in a period atomic size decreases and the as the nuclear charge increases the atomic size decrease. so the order of the atomic size in the decreasing order is Fe²⁺ > Fe³⁺ > Co³⁺.
Thus, The following set of atoms and ions, arrange the members in order of decreasing size: Rank items from largest to smallest : Fe²⁺ > Fe³⁺ > Co³⁺.
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Is BaO ionic or covalent?.
The BaO has an ionic bond.
Ionic bonds generally occur between metallic and non-metallic elements. Therefore, the bonds formed are ionic, since there is a bond between metals and non-metals. Therefore, BaO has ionic bonds. The bond between BaO is called an ionic bond because the valence electrons move. Since Ba is a metal and O is a nonmetal, the bond between them is ionic.
Barium nitrate is an ionic compound. Barium is metal and nitrate is a polyatomic ion a group of non-metals. BaO is a hygroscopic compound whose chemical name is barium oxide. It is also called barium monoxide raw barium oxide and calcined barite. It is widely used as a desiccant for solvents in cathode ray tubes catalytic converters and crown glass.
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assume that 50.0ml of 1.0mnacl(aq) and 50.0ml of 1.0magno3(aq) were combined. according to the balanced equation, if 50.0ml of 2.0mnacl(aq) and 50.0ml of 1.0magno3(aq) were combined, the amount of precipitate formed would
The mass of the silver chloride precipitate produced is 7.15 g.
What is the mass of the precipitate formed?We know that it is possible for a precipitate to be formed when we have to combine two reactants that are in the aqueous phase and the combination of these reactants in the aqueous phase do have to give rise to a product that is solid.
We know that the reaction is 1:1 and we have to find the limiting reactant and use that to find the mass of the precipitate.
Number of moles of sodium chloride = 50/1000 L * 1
= 0.05 moles
Number of moles of silver nitrate = 50/1000 L * 2
= 0.1 moles
The limiting reactant here is sodium chloride.
Mass of the precipitate = Number of moles * molar mass
= 0.05 moles * 143 g/mol = 7.15 g
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normally, the lungs function in a fairly high state of compliance. which of the following could cause lung compliance to be abnormally high or low?
Lung compliance may be abnormally high or low due to atelectasis, pulmonary fibrosis, and emphysema.
Lung compliance, also known as pulmonary compliance, is a gauge of the lung's extensibility. It is divided into static compliance and dynamic compliance measurements in clinical practice. The volume change for any given applied pressure is referred to as static lung compliance. Pulmonary fibrosis, pneumonia, and pulmonary edema are frequent causes of decreased lung compliance. An increase in resistance is a symptom of an obstructive lung disease. The pressure volume relationship is identical to that in a healthy lung during normal breathing. Low compliance denotes a stiff lung and can be compared to a thick balloon, as is frequently the case in fibrosis. Emphysema patients frequently have high compliance, which indicates pliable lung tissue and can be compared to a grocery bag.
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a box has a square base of side x and height h. (a) find the dimensions x, h for which the volume is 16 and the surface area is as small as possible.
The correct answer is 2.51 by 2.53.
The formula for calculating the volume of the square box is expressed as:
V = x²h
Given that the volume of the box is 16, on substituting the value we will have
h = v / x²
h = 16 / x²
The surface area of the box is expressed as:
S = 2(x² + xh + xh)
S = 2(x² +2hx)
S = 2[x² + 2(16/x²)x]
S = 2[x² + (32/x)]
S = 2x² + (64/x)
To get the surface area is as small as possible, then dS/dx = 0
dS/dx = 4x - (64/x²)
0 = 4x - (64/x²)
4x = (64/x²)
4x³ = 64
x³ = 64/4 = 16
x = ∛16
x = 2.51
Get the height of the box. Recall that:
h = 16 / x²
= 16 / (2.51)²
= 16 / 6.3
h = 2.53 m
Hence the dimension for which the volume is 16 and the surface area is as small as possible are 2.51 by 2.53.
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Are the effects of chemical exposure immediate?.
Yes, the effects of chemical exposure are acute (short-term) or immediate soon after exposure. They may be minor, like nose or throat irritation, or they could be serious, like eye damage.
A small chemical exposure can cause tearing eyes and burning of the eyes, nose, throat, chest and pores, and skin. It may purpose headaches, sweating, blurred imaginative and prescient, stomach aches, and diarrhea. It's far not unusual for even mild signs and symptoms from a damaging chemical to make people experience disturbing.
Acute toxicity is often seen within mins or hours after unexpected, excessive publicity of a chemical. however, there are some times wherein a one-time excessive-degree publicity causes behind-schedule outcomes.
Fluid may also expand inside the lungs as overdue as 12 hours after exposure.
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What are 3 basic fire safety principles you should follow at work?.
Three basic fire safety principles are Reduce Fire Hazards in Your Workplace. Keep an Eye on Fire-Prone Rooms. Mark Emergency Exits.
Every year thousands of people lose their life or get seriously injured due to fire-related hazards. Many of us believe we may never be in the middle of a fire accident. That is not true. A fire can happen anywhere and at any time. The outbreak of a fire, when it is not handled carefully, it can lead to loss of life as well as valuable assets. When dealing with a fire, it is important to remain alert at all times and follow preventive measures to avoid the chances of fire.
You may think that this is an obvious fire safety training tip, but the best workplace safety principle is to eliminate any ignition source before any harm is done. For example, plugging too many things into an outlet will increase the chances of a fire as it can cause the circuit to overload.
Some of the principles of fire safety are;
> Reduce Fire Hazards in Your Workplace
> Keep an Eye on Fire-Prone Rooms
> Keep up-to-Date the Fire Detection and Suppression System
> Mark Emergency Exits
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Abby mixes 2 moles hydrogen with 1 mole oxygen to produce water. she expects to produce 2 moles water, but she captures 1.5 moles water. in this case, the value 1.5 moles represents which type of yield? actual yield theoretical yield
The 1.5 moles of water represent the actual yield of the chemical reaction.
What is the theoretical yield of the reaction?The theoretical yield of the reaction can be described as the amount of product determined from stoichiometric calculations. The actual yield can be described as the amount of the product which is experimentally obtained.
The given chemical equation of the reaction of Hydrogen and oxygen.
[tex]2H_2(g) +O_2(g)\longrightarrow 2H_2O (g)[/tex]
Given the 2 moles of hydrogen with 1 mole of oxygen to produce 2 moles of water. Therefore, 2 moles of water is the theoretical yield.
After the reaction 1.5 moles of water is actually obtained, therefore 1.5 moles of water is representing the actual yield.
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why must the crude alkyl halide be carefully dried with anhydrous calcium chloride before distillation
Because if it isn't dry, your distillate is probably going to contain some water vapor.
Why is careful drying of the alkyl halide product with anhydrous calcium chloride necessary before distillation?Distillation always carries over some water vapour if there is water present, even if the substance being distilled is a volatile alkyl halide. This can be avoided by drying the result, which is obviously a bad idea if you're aiming to create an organometallic reagent. Simply pouring NEAT liquid down a Pasteur pipette with glass wool on the stopper and basic alumina within will dry small amounts of alkyl halide. When I had a Grignard reaction, I would always do this.To learn more About water vapor refer to:
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References) CH3 он N(CH2CH3)s CI H3C Dimethylaminopyridine (DMAP) is often used as a catalyst in esterification reactions. A basic solvent such as triethylamine is used to react with the liberated proton from the alcohol group. Draw curved arrows to show the movement of electrons in this step of the mechanism Instructions H3C NHMe3 H3C O
Esterification is the process of mixing an organic acid (RCOOH) with an alcohol (ROH) to produce an ester (RCOOR) and water,
What is the purpose of esterification reaction?Typically, esterification is utilized as a test reaction for novel carbonaceous acid catalysts. The nature of the carbon surface can influence catalytic performance in this process.Esterification is the process of mixing an organic acid (RCOOH) with an alcohol (ROH) to produce an ester (RCOOR) and water, or a chemical reaction that produces at least one ester product. Ester is formed by the esterification of an alcohol and a carboxylic acid.Esterification, a process in which a carboxylic acid and an alcohol are heated in the presence of a mineral acid catalyst to create an ester and water: The response can be reversed.To learn more about Esterification refer,
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Answer:
-Dimethylaminopyridine (DMAP) is a derivative of pyridine with the chemical formula (CH3)2NC5H4N. This colourless solid is of interest because it is more basic than pyridine, owing to the resonance stabilisation from the NMe2 substituent.
Explanation:
In the case of esterification with acetic anhydrides the currently accepted mechanism involves three steps. First, DMAP and acetic anhydride react in a pre-equilibrium reaction to form an ion pair of acetate and the acetylpyridinium ion. In the second step the alcohol adds to the acetylpyridinium, and elimination of pyridine forms an ester. Here the acetate acts as a base to remove the proton from the alcohol as it nucleophilically adds to the activated acylpyridinium. The bond from the acetyl group to the catalyst gets cleaved to generate the catalyst and the ester. The described bond formation and breaking process runs synchronous concerted without the appearance of a tetrahedral intermediate. The acetic acid formed will then protonate the DMAP. In the last step of the catalytic cycle the auxiliary base (usually triethylamine or pyridine) deprotonates the protonated DMAP, reforming the catalyst. The reaction runs through the described nucleophilic reaction pathway irrespective of the anhydride used, but the mechanism changes with the pKa value of the alcohol used. For example, the reaction runs through a base-catalyzed reaction pathway in the case of a phenol.occurs in agreement with the markovnikov rule.
which of the following is the correct net ionic equation of the neutralization reaction between hydrofluoric acid and sodium hydroxide in aqueous solution? responses
HF +NaOH --------> NaF + H₂O is the net ionic equation for the reaction between HF (a weak acid) and NaOH.
When hydrogen fluoride and sodium hydroxide react, sodium fluoride and water are produced. The reaction is an acid-base neutralization reaction and is often used to produce a buffer solution.
Hydrogen fluoride is a very strong acid and sodium hydroxide is a very strong base, so when they react, they produce a salt (sodium fluoride) and water.
The reaction is exothermic and produces a lot of heat, so it is important to use a large excess of sodium hydroxide to ensure the reaction is complete and that the heat is dissipated.
The reaction also produces a large amount of hydrogen gas, which can be dangerous if not vented properly. In summary, when hydrogen fluoride and sodium hydroxide react, sodium fluoride and water are produced, along with a lot of heat and hydrogen gas.
The net ionic equation is as follows:
HF +NaOH --------> NaF + H₂O
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What removes the most carbon from the atmosphere?.
Photosynthesis removes the most carbon dioxide from the atmosphere.
Trees are particularly adept at storing carbon removed from the atmosphere through photosynthesis, which removes carbon dioxide naturally. The power of photosynthesis, which converts carbon dioxide in the air into carbon stored in wood and soils, can be tapped into when forests are expanded, restored, and managed to encourage more carbon uptake.
Even though forest fires and deforestation reduce forests' net absorption, they still manage to absorb approximately 1.5 times as much CO2 as the United States emits.
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Who was the first person to propose spontaneous generation?.
One of the first authors to express the hypothesis of spontaneous generation—the idea that life can emerge from inert matter—was senior Greek philosopher Aristotle (384–322 BC).
What does it mean to be spontaneous?When someone is referred to be spontaneous, it suggests they tend to act spontaneously and without planning or are recognized for doing so. This is often shown in a positive light to represent them as an engaging some one who is brave and prepared to do things by accident.
How can one become more impulsive?You need to be curious and open-minded in order to step outside of his comfort zone and take new things if you want to be spontaneous.
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Drag the numbers to put the following steps in the correct order. As electrons move down the etc, a h+ gradient is made. The krebs cycle produces atp, nadh, fadh2 and co2. H+ pass through the atp synthase to make atp. Nadh and fadh2 gives electrons to the etc. In glycolysis, glucose is split into two pyruvate and makes some atp.
steps in the correct order is :
NADH gives electrons to the ETC.The Krebs cycle produces ATP, NADH and CO2.In glycolysis, glucose is split into two pyruvate and makes some ATP.Ht pass through the ATP synthase to make ATP.As electrons move down the ETC, a H+ gradient is made.What does glycolysis process?The process by which glucose is broken down to provide energy is known as glycolysis. It generates two pyruvate molecules, ATP, NADH, and water. There is no need for oxygen throughout the process, which occurs in the cytoplasm of a cell. Both aerobic and anaerobic creatures experience it.a process by which cells partially break down glucose (sugar) using oxygen-free enzyme reactions. One process that cells use to make energy is glycolysis.To learn more about glycolysis refer,
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write out the full electron configuration of the period 2 element with the following successive ionization energies g
Boron (B) is the element whose IE matches with our data.
Electronic Configuration of boron : 1s22s22p1
What is Electron configuration ?The arrangement of an atom's or molecule's electrons in atomic or molecular orbitals is known as the electron configuration in atomic physics and quantum chemistry.
Divide the periodic table into pieces to represent the atomic orbitals, the areas where electrons are stored, in order to determine an electron configuration. The s-block is represented by groups one and two, the d-block by groups three through twelve, the p-block by groups thirteen to eighteen, and the f-block by the bottom two rows.The atomic number of the alkali metal sodium is 11. The electronic setup will therefore be 1 s 2 2 s 2 2 p 6 3 s 1.One orbital can house a maximum of two electrons, and there are four different types of orbitals (s, p, d, and f). More electrons can be held in the p, d, and f orbitals since they contain various sublevels. According to its location on the periodic table, each element's electron configuration is distinct.One orbital can house a maximum of two electrons, and there are four different types of orbitals (s, p, d, and f). More electrons can be held in the p, d, and f orbitals since they contain various sublevels. According to its location on the periodic table, each element's electron configuration is distinct.What is ionization energies ?Ionization energy, also known as ionisation energy, is the minimal amount of energy needed to liberate the most loosely bound electron from an isolated gaseous atom, positive ion, or molecule in physics and chemistry.
The ionization energy measures an element's ability to participate in chemical processes that call for the creation of ions or the donation of electrons. It is often connected to the type of chemical bonds that exist between the components in the compounds they form. See also electron affinity and binding energy.To know more about Electron configuration please click here ; https://brainly.com/question/26084288
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in molecular orbital (mo) theory, we postulate that the combination of atomic orbitals on different atoms forms molecular orbitals (mos) so that electrons in them belong to the molecule as a whole. vb and mo theories are alternative descriptions of chemical bonding. they have strengths and weaknesses, so they are complementary. vb theory is descriptively attractive, and it lends itself well to visualization. mo theory give better descriptions of electron cloud distributions, bond energies, and magnetic properties, but its results are not as easy to visualize. the number of molecular orbitals formed is equal to the number of atomic orbirtals that are combined. when two atomic orbitals are combined, one of the resulting mos is at a lower energy than the original atomic orbitals; this is a bonding orbital. the other mo is at higher energy than the original atomic orbitals; this is an antibonding orbital. molecular orbital (mo) theory treats a molecules as a collection of nuclei with mos delocalized over the entire structure.
Another approach to think about molecule orbitals is via the lens of molecular orbital theory. Unlike the valence bond's lone pair of electrons and localized bond.
What constitutes a molecular orbital theory postulate?The following are the postulates of the molecular orbital theory: Similar to how an atom's electrons are found in different atomic orbitals, a molecule's electrons are found in a variety of molecular orbitals. Atomic orbitals with appropriate symmetry and equivalent energy combine to generate molecular orbitals.
What unique aspect of MO theory does other bonding theories not account for?According to MO theory, molecular bonds are just nuclei trading electrons. contrary to the VB theory, which views the electrons as localized hybrid electron density orbitals. According to MO theory, the electrons are delocalized.
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draw the two major products of this reaction BH3−THF2.H2O2,NaOH,H2O. use wedge and dash bonds to indicate stereochemistry where appropriate
a molecule's three-dimensional structure, where simple lines stand in for links in the planes, wedge-shaped lines for bonds facing the observer, and dashed lines for bonds facing the viewer's opposite.
Examples of stereochemistry and what it is:The study of a molecule's three-dimensional structure is known as stereochemistry. The sole structural difference between the cis & trans isomers, which are types of stereoisomers, is where the elements of the molecule are situatedthree dimensionally. There may be differences in the chemical and physical properties of these stereoisomers.
What does organic chemistry's stereochemistry entail?The field of chemistry known as stereochemistry is concerned with "the study of the various spatial configurations of atoms in molecules." The methodical presentation of a particular area of science and technology, known as stereochemistry, typically necessitates a brief detour into the past.
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