16 gm/mol is the Molar mass of O.
O is the symbol for the element oxygen, which is a diatomic gas with a molar mass of approximately 32 g/mol. This means that one mole of oxygen atoms, which is equivalent to 6.022 x 10^23 atoms, has a mass of 32 grams.
The molar mass of oxygen is calculated by adding the atomic mass of one oxygen atom, which is 16 g/mol, to itself because there are two oxygen atoms in each molecule of oxygen gas. Therefore, the molar mass of O is equal to 2 x 16 g/mol, or 32 g/mol. This is useful information for chemists and scientists who need to perform calculations and measurements involving the amount of oxygen present in a sample of a substance.
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how many k and s2- ions would be in one formula unit of the ionic compound
K2S is created in a complex by K+ and S2-. Two K+ ions and one S2- ion, for a total of three ions, are present in a single formula unit.
What is an ion?
Any particle or collection of atoms with one or more positive or negative electrical charges is known as an ion. Cations are positively charged ions, and anions are negatively charged ions. Ions are created when neutral atoms, molecules, or other ions have electrons added to them or taken away from them. Ions can also be created when other particles are combined with them, or when a covalent bond between two atoms is broken and both of the bond's electrons are left in association with one of the former bonded atoms. These processes include the addition of a hydrogen cation to an ammonia molecule to create an ammonium cation, the reaction of an atom of sodium with an atom of chlorine to form a sodium cation and a chloride anion, and others.
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arrange the following atoms and ions in order of increasing atomic size?: a)Rbb)Agc)O−2d)Ale)Of)Csg)Al+3h)Si
The increasing order of given atoms and ions according to periodic table is :
[tex]O < AL^{3+} < Si < Al < O^{2-} < Ag < Rb < Cs[/tex]
On the periodic chart, atomic size decreases from left to right because, as we move from left to right, the attractive force of the protons on the same number of electron ring increases for each element. As a result, the electrons are drawn towards the center.
Moving from top to bottom results in period table, a rise in atomic size is observed because each element gains a new ring of electrons. The nucleus can be further removed from by outer electrons.
The oxygen ion([tex]O{2-}[/tex]) is bigger than oxygen in its elementary state because it has two more electrons and attracts 10 electrons in addition to its 8 protons. The aluminium ion[tex]Al^{3+}[/tex] is significantly smaller than the basic aluminium. In this instance, ten electrons are being drawn in by 13 protons. The 3 [tex]Al^{3+}[/tex] ion will therefore be smaller than the Si element, which has 14 protons pulling 14 electrons, as a consequence.
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How do you write the electron configuration for sulfur?
The electron configuration for sulfur can be written as follows: 1s² 2s² 2p⁶ 3s² 3p⁴. Sulfur is an element with atomic number 16, which means it has 16 protons and 16 electrons.
To write the electron configuration for sulfur, we need to determine how these electrons are arranged in the atom. The electron configuration of an atom indicates how its electrons are distributed among its various energy levels. In general, electrons fill up the lowest energy levels first before moving to higher energy levels.
The electrons in an atom can be described using a notation that lists the energy level, sublevel, and number of electrons in each sublevel. The electron configuration for sulfur can be determined by following a set of rules known as the Aufbau principle, the Pauli exclusion principle, and Hund's rule. These rules dictate the order in which electrons fill up the available energy levels and sublevels, and ensure that no two electrons in an atom have the same set of quantum numbers.
To write the electron configuration for sulfur, we start by filling up the first energy level, which can hold up to 2 electrons. Next, we move on to the second energy level, which can hold up to 8 electrons. We then fill up the sublevels in the following order: 2s, 2p, 3s, 3p, 4s, and so on.
Using this method, the electron configuration for sulfur can be written as follows:
1s² 2s² 2p⁶ 3s² 3p⁴
This notation indicates that the first energy level has 2 electrons (denoted by 1s²), the second energy level has 8 electrons (2s² 2p⁶), and the third energy level has 6 electrons (3s² 3p⁴). The 3p sublevel is half-filled with 4 electrons, which makes sulfur a p-block element.
In summary, the electron configuration for sulfur can be written as 1s² 2s² 2p⁶ 3s² 3p⁴. This notation describes how the electrons are arranged in the atom, and is based on the rules of the Aufbau principle, the Pauli exclusion principle, and Hund's rule.
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the following molecules have been dissolved in heptane. an aqueous solution of dilute hydrochloric acid is added to the heptane solution and shaken vigorously. the mixture is allowed to separate. what compound would you expect to be in the aqueous layer?
Answer:i think its the nucleas
Explanation:
im not totally sure
In the reaction 2H2 + O2 → __H2O, what coefficient should be placed in front of H2O to balance the reaction?
1
2
3
4
Answer:
Below
Explanation:
2 H2 + O2 ====> H20 you have 4 H's on L...need 4 on right so:
2H2 + O2 =====> 2 H2 O Now H's are 'balanced' and a check of the O's shows they are balanced too (two O's on each side)
How much energy is released during the combustion of 60 g of ethane and excess o2? 2c2h6 7o2 → 4co2 6h2o, δh = -1500 kj/mol
The combustion of 60 g of ethane with excess oxygen releases approximately 1495.40 kJ of energy.
The combustion of 60 g of ethane (C2H6) with excess oxygen (O2) can be calculated using the balanced chemical equation:
2C2H6 + 7O2 → 4CO2 + 6H2O
From the balanced equation, we can see that for every 2 moles of ethane (C2H6) that react, 1500 kJ of heat energy is released. Therefore, we need to convert 60 g of ethane to moles using its molar mass of 30.07 g/mol:
60 g C2H6 × (1 mol C2H6 / 30.07 g C2H6) = 1.996 mol C2H6
Since 2 moles of ethane react to produce 1500 kJ of energy, we can use a proportion to calculate the energy released from 1.996 moles of ethane:
(1500 kJ / 2 mol C2H6) × 1.996 mol C2H6 = 1495.40 kJ
Therefore, the combustion of 60 g of ethane with excess oxygen releases approximately 1495.40 kJ of energy. This calculation assumes that all of the ethane reacts completely and that all of the heat energy released is transferred to the surroundings.
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name given to atoms that have either gained or lost electrons is
An atom that has gained or lost electrons is considered to have experienced an ion if it now has a net charge.
What is the process of losing or gaining an electron known as?Reduction is the process of gaining electrons, whereas oxidation is the process of losing electrons. Oxidizing agents are any substances that make other substances lose electrons (become oxidized).
Why do atoms pick up or drop off electrons?Since it makes them more stable and requires less energy to sustain, atoms become ions by shedding or gaining electrons. An atom is in its most stable state when its outermost energy level is packed with as many electrons as is physically possible.
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do all molecular structures have at least one imaginary frequency
No, not all molecular structures have at least one imaginary frequency. It depends on the specific geometry and symmetry of the molecule.
In general, molecular structures with three or more atoms will have one or more imaginary frequencies.This is because these structures have multiple vibrational modes, and not all of these modes correspond to physical vibrations of the molecule. Instead, some modes involve a distortion of the molecular geometry that is energetically unfavorable or impossible. These modes are represented by imaginary frequencies in the calculated vibrational spectrum of the molecule. However, some simple diatomic molecules, such as HCl or N₂, may not have any imaginary frequencies due to their limited vibrational modes.
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what is methanol boiling point
The boiling point of methanol is approximately 64.7 degrees Celsius (148.5 degrees Fahrenheit) at standard atmospheric pressure (1 atmosphere or 760 mmHg).
Methanol Boiling Point and PropertiesMethanol, also known as methyl alcohol, is a colorless, flammable liquid that is commonly used as a solvent, fuel, and antifreeze. The boiling point of methanol is relatively low at approximately 64.7 degrees Celsius (148.5 degrees Fahrenheit), which means that it can easily evaporate at room temperature.
Methanol is also highly soluble in water, with a solubility of approximately 170 grams per liter at room temperature. In addition to its low boiling point and high solubility, methanol is also highly flammable and toxic, and can cause severe health problems if ingested or inhaled.
Despite these risks, methanol has a wide range of applications in industry, including as a feedstock for the production of formaldehyde and other chemicals, as well as a fuel for internal combustion engines. Overall, the unique physical and chemical properties of methanol make it a versatile and valuable industrial chemical, but also one that requires careful handling and use to avoid safety risks.
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which is the regulator of extracellular osmolarity? a. Sodium b.Potassium is the major intracellular osmolarity regulator, and it also regulates metabolic activities, transmission and conduction of nerve impulses, cardiac conduction, and smooth and skeletal muscle contraction
c.Chloride is a major extracellular anion and follows sodium
d.Calcium is an extracellular cation necessary for bone and teeth formation, blood clotting, hormone secretion, cardiac conduction, transmission of nerve impulses, and muscle contraction
Sodium is one of the most crucial electrolytes in the extracellular fluid because it is an osmotic action. It controls the modulation of the membrane potential of cells as well as the volume of extracellular fluid.
How does the body control the osmolality of extracellular fluid?By adjusting the amount of sodium and water ejected, the kidneys, in coordination with neurological and endocrine input, control the volume and osmolality of the extracellular fluid. Changes in sodium and water reabsorption, whose mechanisms vary within each nephron segment, are the main method used to do this.
What controls blood osmolarity most effectively?Osmolality is managed by your body in a special way. Osmolality rises, which causes your body to produce an antidiuretic hormone (ADH). Also known as arginine vasopressin (AVP). This hormone instructs your kidneys to retain more water in your blood vessels, which causes your urine to thicken.
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what is sodium acetate formula?
The chemical formula for sodium acetate is NaC₂H₃O₂.
Sodium acetate is the sodium salt of acetic acid (also known as ethanoic acid), and it is commonly used in the food industry, as a buffer in chemical reactions, and as a component in heating pads. The formula indicates that the molecule contains one sodium (Na) ion, one acetate ion (C₂H₃O₂⁻), and a total of three oxygen atoms.
sodium acetate is a white crystalline powder that is soluble in water. It has a slightly salty and vinegar-like taste, and it is commonly used as a food seasoning, particularly in snack foods like chips and popcorn.
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4. The lake water changes color rapidly on exposure to air. Suggest a factor that may affect the
speed of the reaction in Blood Falls. This question is not in the article directly. Give a reasonable
guess, that shows thought and effort.
A factor that might affect the speed of reaction of the water in Blood Falls is the concentration of iron in the water.
How can the speed of reaction of the lake water be affected ?Blood Falls is located in the McMurdo Dry Valleys of Antarctica, where a subglacial lake with a high concentration of iron mixes with oxygenated seawater to create the characteristic reddish color of Blood Falls.
The speed of this reaction may be influenced by the amount of iron present in the water, as well as the availability of oxygen to react with the iron. If the concentration of iron is high, the reaction may proceed more quickly than if the concentration is lower.
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In the following acid-base reaction, CH3NH3+ is the CH3NH2(g) + H2O(1) → CH3NH3(aq) + OH¯(aq)
Conjugate base
Conjugate acid
Acid
In the given acid-base reaction, CH[tex]_3[/tex]NH[tex]_2[/tex](g) + H[tex]_2[/tex]O(1) → CH[tex]_3[/tex]NH[tex]_3[/tex]⁺(aq) + OH¯(aq), CH[tex]_3[/tex]NH[tex]_3[/tex]⁺ is the Conjugate acid.
What is acid-base reaction?The exchange with one or maybe more hydrogen ions, H+, among species that could be neutral (molecules like water, H2O, or acetic acid, CH3CO2H), as well as electrically charged (ions like ammonium, NH4+, hydroxide, OH, or carbonate, CO32), is what is known as an acid-base reaction.
It also covers equivalent behavior of acidic ions and molecules (aluminum chloride, AlCl3, and the silver ion AG+) that do not give hydrogen ions. In the given acid-base reaction, CH[tex]_3[/tex]NH[tex]_2[/tex](g) + H[tex]_2[/tex]O(1) → CH[tex]_3[/tex]NH[tex]_3[/tex]⁺(aq) + OH¯(aq), CH[tex]_3[/tex]NH[tex]_3[/tex]⁺ is the Conjugate acid.
Therefore, in the given acid-base reaction, CH[tex]_3[/tex]NH[tex]_2[/tex](g) + H[tex]_2[/tex]O(1) → CH[tex]_3[/tex]NH[tex]_3[/tex]⁺(aq) + OH¯(aq), CH[tex]_3[/tex]NH[tex]_3[/tex]⁺ is the Conjugate acid.
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A sample of pure copper has a volume of 3.75 cm3. Calculate the mass
The sample of pure copper weighs 33.6 g.
What is an example of mass by volume?(Mass of Solute/Volume of Solution) x 100 represents the mass by volume proportion. It compares the volume of the solution to the mass or weight of the solute in grammes, for instance (e.g., in mL). An illustration would be a medical saline solution with a 0.9 percent (w/v) NaCl solution, which contains 0.9 g of NaCl per 100 mL of solution.
The calculation requires the density of copper, which is 8.96 g/cm³.
The following is the formula to determine a substance's mass:
mass = density × volume
Substituting the values given:
mass = 8.96 g/cm³ × 3.75 cm³
mass = 33.6 g
The sample of pure copper therefore has a mass of 33.6 g.
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when a solution of a2 is mixed with one containing c- ions, the color remains green. is a2 a better oxidizing agent than c2? question 3 options: yes no
When a solution of a2 is mixed with one containing c- ions, the color remains green therefore a2 is not a better oxidizing agent than c2.
What is an Oxidizing agent?This is a substance in a redox chemical reaction that gains or "accepts"/"receives" an electron from a reducing agent and is any substance that oxidizes another substance.
In this scenario we should note that:
When C is mixed with A-, the color changes from red to green. A- is oxidized while C is reduced. C > A in oxidizing power.When C is mixed with B-, the color does not change. C is stronger than A but C is weaker than B in oxidizing power which means that the arrangment is B > C > A.Read more about Oxidizing agent here https://brainly.com/question/14041413
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what 1-bromobutane undergoes dehydrohalogenation by an elimination reaction when heated in the presence of base?
When 1-bromobutane undergoes dehydrohalogenation by an elimination reaction when heated in the presence of base, the organic product formed is 1- butene.
Dehydrohalogenation is defined as a reaction in which a hydrogen atom and a halogen atom are removed from adjacent atoms in a molecule forming an alkene or an alkyne. When this is reacted with strong base such as hydroxide ion, cyclohexyl chloride suffers dehydrohalogenation by a concerted E2 reaction mechanism. An elimination reaction is defined as a type of organic reaction in which two substituents are removed from a molecule in either a one or two step mechanism. The one step mechanism involved is known as the E2 reaction and the two-step mechanism is known as the E1 reaction. When 1-bromobutane undergoes dehydrohalogenation in the presence of a base it undergo elimination reaction.
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The correct question is,
1-bromobutane undergoes dehydrohalogenation by an elimination reaction when heated in the presence of base. what is the identity of the organic product?
Given the balanced chemical equation for the decomposition of INO, and the rate of disappearance if INO, write the expressions for the rates of appearance of I2 and NO2 INO (g) ----> I2 (g) + 2 NO (g)Reactant:- (Delta [INO] / 2 Delta t) = Product (I2): (___/___) = Product (NO): (___/___)
Expressions for the rates of appearance of I₂ and NO₂ is: Rate of appearance of I₂ = (Delta [I₂] / Delta t) = k[INO], Rate of appearance of NO = (Delta [NO] / Delta t) = 2k[INO].
Balanced chemical equation for the decomposition of INO is:
INO (g) → I₂ (g) + 2NO (g)
The rate of disappearance of INO is given as:
(Delta [INO] / Delta t) = - k[INO]
where [INO] is the concentration of INO, t is time, and k is the rate constant.
To find the expressions for the rates of appearance of I₂ and NO, we need to use the stoichiometric coefficients from the balanced equation. The coefficient of I₂ is 1, and the coefficient of NO is 2. Therefore, the expressions for the rates of appearance of I₂ and NO₂ are:
Rate of appearance of I₂ = (Delta [I₂] / Delta t) = k[INO]
Rate of appearance of NO = (Delta [NO] / Delta t) = 2k[INO]
Note that these expressions are based on the assumption that the reaction is first-order with respect to INO. If the reaction is not first-order with respect to INO, the expressions for the rates of appearance of I₂ and NO will be different.
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When aqueous solutions of _________ are mixed, a precipitate forms. Answer a. NiBr2 and AgNO3 b. NaI and KBr c. K2SO4 and CrCl3 d. KOH and Ba(NO3)2 e. All of the above solutions will form a precipitate.
Precipitate develops when NiBr2 and AgNO3 are combined in aqueous solutions.
A precipitate forms when aqueous solutions are combined, right?When cations and anions in an aqueous solution react to generate a precipitate, an insoluble ionic solid, precipitation processes take place. The solubility principles for typical ionic solids can be used to determine whether or not such a reaction takes place.
What kinds of aqueous solutions precipitate?Sulfide (S2), hydroxide (OH), carbonate (CO32), and phosphate (PO43) are examples of anions-containing compounds that are frequently insoluble in water. If one of these anions is added to a solution containing a metal cation like Fe2+, Cu2+, or Al3+, a precipitate will result.
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what process produced the purple garnet crystals in the rock in photo g? choose one: a. solid-state diffusion b. freezing of molten rock c. biomineralization d. diffraction
Solid-state diffusion is a process that produce the purple garnet crystals in the rock. Therefore, the correct option is option A.
What is purple garnet crystals?Garnet may be found as purple stones as well as its most common color, red. The garnet types known as pyrope and spessartine are where the purple crystals are found. The commonest of all garnets, blue garnet, changes color to purple when illuminated by an incandescent bulb.
At prices up to $3,000 per carat, this colour scheme garnet is one of the most costly purple gemstones. January's birthstone is garnet generally. Garnet is the birthstone for Aquarius in astrology. Solid-state diffusion is a process that produce the purple garnet crystals in the rock.
Therefore, the correct option is option A.
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how to find oxidation number
The oxidation number of the atom is the number that will represents the total number of the electrons lost or the gained by it.
The oxidation number of the atom is the number that will represents the total number of the electrons lost or the gained by it. The free element has an oxidation number that is equal to zero. For the monoatomic ions, the oxidation number will always be has the same value as the charge related to the ion.
The hydrogen atom (H) will exhibits an oxidation state of the +1. The Oxygen has the oxidation of the -2 in most of the compounds. All the alkali metals that have the oxidation state of the +1 in the alkali compounds.
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Which method could you use to
encourage more product, SO2, to form
from the reaction below?
4558 kJ+2SO 3 (g) 2SO2 (g) + O2 (g)
Look at the comment
Remove some oxygen so that we can have more of the sulfur dioxide in the system that have been shown below.
How do you produce more SO2?We can see that the reaction that we have here is an endothermic reaction since the heat has been written on the reactant side thus we would have to add some that so that we can drive the forward reaction.
In this case, when we look at the reaction that has been written as;4558 kJ+2SO 3 (g) -----> 2SO2 (g) + O2 (g). We can see that if we remove some of the oxygen then we will have more SO2.
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Missing parts;
Which method could you use to
encourage more product, SO2, to form
from the reaction below?
4558 kJ+2SO 3 (g)2S*O_{2}(g) + O{2}(g)
Cool the system
Decrease the volume of the container
Remove SO3
Remove O2
how many moles of 4-t-butylphenol are in the mixture to be separated in experiment 1? how many moles of sodium hydroxide are contained in 1 ml of 5% sodium hydroxide solution? (assume the density of the solution is 1.0.) what volume of concentrated hydrochloric acid is needed to neutralize this amount of sodium hydroxide solution?
So, 12.5 mL of 10 M HCl would be needed to neutralize the 0.125 moles of NaOH in the 1 mL of 5% sodium hydroxide solution.
What is mole concept?The mole concept is a fundamental concept in chemistry that is used to quantify the amount of a substance in a sample. A mole is defined as the amount of substance that contains the same number of entities (atoms, molecules, ions, etc.) as there are atoms in exactly 12 grams of carbon-12. This number of entities is known as Avogadro's number. Using the mole concept, it is possible to convert between the mass of a substance and the number of moles of the substance, and vice versa. For example, the molar mass of a substance is the mass of one mole of the substance, and it can be used to convert between the mass and the number of moles of the substance. If the molar mass of a substance is known, then the number of moles of the substance can be calculated from its mass using the equation: moles = mass / molar mass. Conversely, if the number of moles of a substance is known, then its mass can be calculated from the number of moles using the equation: mass = moles x molar mass. The mole concept is used extensively in stoichiometry, which is the study of the quantitative relationships between reactants and products in chemical reactions. It is also used to calculate concentrations of solutions, to determine the limiting reagent in a reaction, and to determine the theoretical yield of a reaction.
Here,
The first question is asking for the number of moles of 4-i-butylphenol in the mixture to be separated in Experiment 1. This would depend on the specific composition of the mixture and the amount used in the experiment. Without more information, it is not possible to calculate the number of moles of 4-i-butylphenol in the mixture.
For the second question, we can calculate the number of moles of sodium hydroxide in 1 mL of 5% sodium hydroxide solution as follows:
The concentration of 5% sodium hydroxide solution is 5 g of NaOH in 100 mL of solution. We can convert the grams of NaOH to moles:
5 g NaOH x (1 mol NaOH/40.00 g NaOH) = 0.125 mol NaOH
So, 1 mL of 5% sodium hydroxide solution contains 0.125 moles of NaOH.
For the third question, we need to know the amount of sodium hydroxide solution to be neutralized and the concentration of the concentrated hydrochloric acid solution.
Assuming we want to neutralize all 0.125 moles of NaOH in the 1 mL of 5% sodium hydroxide solution, we can use the balanced chemical equation for the neutralization reaction between NaOH and HCl:
NaOH + HCl → NaCl + H2O
The equation shows that 1 mole of NaOH reacts with 1 mole of HCl to form 1 mole of NaCl and 1 mole of water.
If the concentration of the concentrated hydrochloric acid solution is known, we can use it to calculate the volume needed to neutralize the 0.125 moles of NaOH. For example, if the concentration of the concentrated hydrochloric acid solution is 10 M (10 mol/L), we can use the following calculation:
0.125 mol NaOH x (1 mol HCl/1 mol NaOH) x (1 L/10 mol HCl) x (1000 mL/1 L) = 12.5 mL
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Which of the following compounds has ionic bonds?
a. H2O
b. O2
c. Ne
d. CO
e. KBr
The compound that has ionic bonds is KBr (potassium bromide). Therefore the correct option is Option E.
Ionic bonds develop when two atoms with significantly differing electronegativities create a bond in which one atom (the metal) contributes electrons to the other atom (the non-metal). Potassium (K) is a metal in KBr, while bromine (Br) is a nonmetal. The electronegativity of K is low, whereas that of Br is high. When K and Br bond, K contributes its valence electron to Br, resulting in an ionic bond.
The other chemicals listed, on the other hand, have covalent bonding. When atoms with similar electronegativities share electrons in order to produce a more stable electron configuration, covalent bonds occur.
a. H2O has covalent bonds;
b. O2 contains covalent bonds; and
c. Ne is a noble gas that does not create bonds.
d. CO contains covalent bonds.
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when filling a buret for a titration, first adjust the buret in the clamp so that ____ then, _____to add the titrant into the buret. the titrant should be filled ____.
When filling a buret for a titration, it is important to first adjust the buret in the clamp so that it is level and vertical. The titrant should be filled to just above the calibration mark at the zero point on the buret.
This is crucial to ensure that the titrant will be delivered accurately and consistently during the titration. A buret that is tilted or not level could result in inaccurate readings or inconsistent delivery of the titrant.
After adjusting the buret in the clamp, the next step is to add the titrant into the buret. This is typically done using a funnel to avoid spilling or splashing. It is important to add the titrant slowly and carefully to avoid air bubbles or excessive foaming, which could also affect the accuracy of the titration.
Any excess titrant should be drained out until the bottom of the meniscus is exactly at the calibration mark. This will ensure that the buret is filled accurately to the correct volume, allowing for precise and consistent delivery of the titrant during the titration.
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what is the predicted freezing point depression of a solution with 0.200 g of myristic acid dissolved in 4.00 g of stearic acid? the kf of stearic acid is f 4.5 c/m. the molar mass of myristic acid is 228.37 g/mol.
0.94°C is the predicted freezing point depression of a solution with 0.200 g of myristic acid dissolved in 4.00 g of stearic acid.
What is freezing point?A liquid's freezing point is the temperature at which it turns into a solid. Similar to the melting point, the freezing point often rises with increasing pressure. In the case of combinations and for some organic substances.
The first solid that forms when a combination freezes often differs in composition from the liquid, and the development of the solid alters the composition of something like the remaining liquid, typically lowering the freezing point gradually.
ΔTf = i×Kf×m
m= given mole/ weight of solvent in kg
mole = given mass/ molar mass
= 0.200/ 228.37
= 0.00087
m=0.00087/ 0.004
= 0.21m
ΔTf = 1× 4.5×0.21
= 0.94°C
Therefore, 0.94°C is the predicted freezing point depression of a solution.
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Which method could you use to
encourage more product, HI, to form
from the reaction below?
51.8kJ + H_{2}(g) +l 2 (g)
We can form more HI by increasing the temperature.
What is the endothermic reaction?An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, typically in the form of heat. This means that the energy of the reactants is lower than the energy of the products, and the reaction requires an input of energy to proceed.
In an endothermic reaction, the temperature of the surroundings usually decreases because energy is being taken in from the environment. For example, when ice melts, the process is endothermic because the ice absorbs heat from its surroundings, causing the temperature to drop.
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Answer:Remove HI gas
Explanation:Acellus confirmed
Question
What volume in liters is occupied by 176 grams of propane, C3Hg?
Round answers to one decimal.
The value for the molar volume of an ideal gas at STP is very important with regard to stoichiometric calculations. The volume occupied by 176 g of C₃H₈ is 89.4 L.
What is molar volume?The volume occupied by one mole of a substance at a given temperature and pressure is called its molar volume at that temperature and pressure. The molar volume at STP is 22.414 L.
At 0°C and 1 atm, 1 mole of any gas behaving ideally occupies a volume of 22.414 L.
The molar mass of C₃H₈ = 44.097 g/mol
The number of moles (n) is given as:
n = Given mass / Molar mass
n = 176 / 44.097 = 3.99 moles
The volume occupied = 3.99 × 22.414 = 89.43 L
Thus the volume occupied by 113 g of C₃H₈ is 89.4 L.
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Your question is incomplete, but most probably your full question was
What volume in liters at STP is occupied by 176 grams of propane, C3H₈?
Round answers to one decimal.
When using acids and bases, note that these substances are _____ Make every effort to avoid contact with ______ Be sure to wipe up any spills ______.
Choose bellow:
corrosive; immediately ; the skin and lab surfaces
When an acid and a base combine, the matching salt and water are created. An acid-base reaction is what is happening here. The neutralization reaction is another name for the acid-base reaction.
What is the technique by which an acid and a base cancel one another?The interaction of H+ ions and OH- ions produces water in a neutralization reaction, which occurs when an acid and a base react to form water and a salt. A pH of 7 results from the neutralization of a potent acid and potent base.
What compounds are created when an acid and a base interact?An acid and a base react when they are combined to negate the effects of the acid and base,
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What is dipole-dipole interaction example?
Some examples of a dipole–dipole interaction can be that interaction which is formed between polar molecules, such as hydrogen chloride (HCl), carboxylic acids (i.e., acetic acid), and amino acids.
Dipole–dipole interactions are defined as weak interactions which arises from the close association of permanent or induced dipoles. Collectively these forces are usually known as Van der Waals interactions. Generally, proteins contain a large number of these interactions, which vary considerably in strength.
Hydrogen chloride (HCl), hydrogen fluoride (HF), and water are all common examples of dipole-dipole forces. HCl (hydrogen chloride) is considered as a permanent dipole. Basically, the chlorine atom has a partially negative charge, while the hydrogen atom has a partially positive charge.
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The volume changes from 1.25L to 1.15L at a temperature of 313K, what is the final temperature?
Answer:
Below
Explanation:
Your question states the temperature is 313 K
to convert from K to °C subtract 273.15
313 K - 273.15 = 39.85 °C
