If a certain dose of radiation produce a skin burn, a higher dose of radiation will cause the skin burn to be more severe; however, a dose below the threshold level for skin burn will not demonstrate the effect.
The radiation is also known as the electromagnetic radiation. The energy that emittance from the source and travel thorough space at speed is called as radiations. A dose below the threshold level for the skin burn will not demonstrate the effect.
Thus, If a certain dose of radiation produce a skin burn, a higher dose of radiation will cause the skin burn to be more severe; however, a dose below the threshold level for skin burn will not demonstrate the effect.
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match the term to the correct definition. aequivalence point bsolubility equilibria cmolar solubility. dend point. ecommon ion effect fbuffer solution gsolubility product (ksp) hacid-base indicator iacid-base titration.is a type of dynamic equilibrium that exists when a chemical compound in the solid state is in chemical equilibrium with a solution of that compound. is responsible for the reduction in the solubility of an ionic precipitate when a soluble compound containing one of the ions of the precipitate is added to the solution in equilibrium with the precipitate.
(a)Equivalence point: point in titration at which the amount of titrant added is just enough to completely neutralize the analyte solution.
(b)Solubility equilibria: a type of dynamic equilibrium that exists when a chemical compound in the solid state is in chemical equilibrium with a solution of that compound.
(c)Molar solubility: the number of moles of a compound that dissolve to give one litre of saturated solution is called its molar solubility.
(d)End point: the point during a titration when an indicator shows that the amount of reactant necessary for a complete reaction has been added to a solution.
(e)Common ion effect: is responsible for the reduction in the solubility of an ionic precipitate when a soluble compound containing one of the ions of the precipitate is added to the solution in equilibrium with the precipitate.
(f)Buffer solution: buffer is a solution that can resist pH change upon the addition of an acid or a base.
(g)Solubility product: the solubility product of an ionic compound is defined as the product of the concentration of the ions that exist in equilibrium with the solid compound in a saturated solution.
(h)Acid-base indicators: also known as pH indicators are substances that change colour with pH.
(i)Acid-base titration: Acid-base titrations are usually used to find the amount of a known acidic or basic substance through acid-base reactions.
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What is the empirical formula of b10h14?.
A molecular formula is a mathematical representation of the precise number of atoms in a compound. Glucose has a molecular formula of C6H12O6, whereas the empirical formula is CH2O.
Describe empirical formula using an example?The simplest whole number ratio of atoms present in a compound is its empirical formula in chemistry. The empirical formula of sulphur monoxide, abbreviated SO, and disulfur dioxide, abbreviated S2O2, are two straightforward examples of this idea.
About 46.0 g/mol is the molar mass of the empirical formula for NO2. Molar mass of the chemical compound is 138 g/mol. The empirical formula must therefore be multiplied by 3 to obtain the molecular formula for N3O6.
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what volume of a 0.146 m nitric acid solution is required to neutralize 29.1 ml of a 0.157 m barium hydroxide solution?
A chemical equation must always be in balance because, according to the law of conservation of mass, mass cannot be generated or destroyed.
How to calculate the balance equation?Writing a balanced equation for the reaction is the first step. Below is an example to help:
Ca(NO3)2 + 2H2O > 2HNO3 + Ca(OH)2
By using the equation:
nA = 2 (mole of acid).
nB = 1 (mole of base)
Information gleaned from the query includes:
Ma (Acid Molarity) =?
Va (acid volume) = 20.7 mL
Mb = 0.106 Mb (Molarity of Base)
Vb = 13.1 mL (volume of base).
We can determine the acid's molarity by using the formula MaVa/MbVb = nA/nB as follows:
nA/nB = MaVa/MbVb
Ma x 20.7/ 0.106 x 13.1 = 2/1
As demonstrated below, cross multiply to express in linear form:
Ma x 20.7 = 0.106 x 13.1 x 2
Add 20.7 to both sides.
Ma = (0.106 x 13.1 x 2) / 20.7
Ma = 0.134M
As a result, the acid's molarity is 0.134M.
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The element nitrogen would be expected to form covalent bond(s) in order to obey the octet rule. Use the octet rule to predict the formula of the compound that would term between nitrogen and fluorine, if the molecule contains only one nitrogen atom and only single bonds are formed. Formula
The formula of the compound that is formed is [tex]NF_{3}[/tex]
What is the octet rule?The octet rule tells us that in order for an atom to be stable, the number of the electrons that must be found on the outermost shell of the atom is eight thus the electron must have an octet of electrons so as to be stable.
In the case of nitrogen an fluorine which are two non metals, this can be achieved by the sharing of electrons between one nitrogen atom and three atoms of fluorine to form the nitrogen fluoride molecule.
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How long is canned chicken salad good for in the refrigerator?.
In the laboratory, the temperature is 295 k and the total pressure in the gas-collecting tube is 748. 6 mmhg. If the vapor pressure of water at 295 k is 19. 8 mmhg, determine the pressure of the h2(g) in the gas-collecting tube.
According to the Dalton Law in a blend of non-reacting gases, the entire pressure will be equivalent to the total of partial pressures of the individual gases.
The pressure of H₂ gas collected in the tube will be 728.8mm Hg.
This can be calculated by:
Dalton's formula:
Ptotoal = PH2O + PH2
Given :
Ptotal = total pressure of gases = 748. 6mm Hg
PH2O = partial pressure of water = 19.8 mm Hg
PH2 = partial pressure of hydrogen = ?
Now using the formula we will calculate:
748. 6mm Hg = 19.8 mm Hg + PH2
728.8mm Hg = PH2
Therefore, the pressure of the hydrogen in the tube is 728.8mm Hg.
Hence 728.8mm Hg is a correct answer.
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What is an example of a scope three carbon emission driving a gasoline fueled vehicle?.
A scope illustration Driving a car with gasoline as its fuel produces three carbon emissions. All of the emissions that take place across a company's value chain and are not covered by scope 2.
These emissions aren't caused by the business or the things it makes. Carbon emissions from operating a gasoline-powered vehicle are significant. Scope 3 applies since the product, not the company's machines, is what causes the emissions. There are three types of carbon emissions: 'Scope 1' or 'Direct Emissions' Direct GHG is produced at sources where the fuel is burned there and then. Examples of scope 1 emissions are personal automobiles and gas stoves. Typically, an internal combustion engine with spark ignition powers a gasoline vehicle.
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when aspirin is synthesized from salicylic acid and acetic acid, aspirin is produced via what type of reaction?
The condensation reaction results in the formation of aspirin or acetylsalicylic acid. In the process, acetic acid's carboxylic acid group and the -OH group of the phenol from salicylic acid combine to generate acetylsalicylic acid.
What is Condensation reaction?
A group of reactions where two molecules unite with the elimination of water or another simple molecule, typically in the presence of a catalyst.
What is Acetylsalicylic acid?
A drug that is frequently used to alleviate pain and fever from many causes. Both anti-inflammatory and antipyretic actions are produced by acetylsalicylic acid. Additionally, this medication prevents platelet aggregation and is used to treat myocardial infarction, stroke, and blood clots.
The condensation reaction results in the formation of aspirin from salicylic acid and acetic acid.
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Complete the table of bond energies and bond lengths. 125 pm 145 pm 167 kj/mol 942 kj/mol 110 pm 418 kj/mol.
N-N: 145 pm and 167 KJ/mol
N=N: 125 pm, 418 KJ/mol
And N2: 110 pm , 942 KJ/mol
Explanation: Bond length is inversely proportional to bond energy.
Greater the bond length, the smaller the bond energy, and vice-versa.
In molecular geometry, bond length or bond distance is described because of the average distance among nuclei of bonded atoms in a molecule. It's far a transferable belonging of a bond between atoms of constant kinds, exceptionally independent of the relaxation of the molecule.
The bond period is described because of the equilibrium distance between the nuclei of bonded atoms in a molecule. The larger the size of the atom, the longer the bond length
The longest bond is taken into consideration to be a carbon-carbon bond, found in diamonds. Its duration is 154 pm. It's by far the longest because of the three-dimensional structure of a diamond, and the carbon atoms bonded via covalent bonds.
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ist all of the types of intermolecular interactions that occur in each of the following molecules. then circle the molecule in each row that has a lower boiling point.
According to the given statement Dispersion, Dipole–Dipole, Hydrogen Bonding, and Ion-Dipole.
What is molecule and its function?A molecule is the simplest unit of a molecule that keeps its content and properties. It is made up of two or maybe more atoms that are joined together by chemical bonds. Chemistry is built on molecules. The element name and a subscript indicating the number more atoms are used to identify molecules.
What purpose does a molecule serve?Molecular function refers to processes that take place at the molecular level, such as catalysis or binding. GO molecular function words do not describe the location, timing, or context of an action; rather, they indicate activities rather than the objects (molecules or complexes) that carry them out.
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assign each signal to a set of protons (i, ii, iii, or iv) how many protons should each signal integrate for? enter your answer as a number.
It tells us the number of protons in that signal.
A proton is a solid subatomic particle, image p, H⁺, or ¹H⁺ with a nice electric rate of +1 e simple price. Its mass is barely much less than that of a neutron and 1,836 times the mass of an electron.
Electrons are a kind of subatomic particle with a bad fee. Protons are a sort of subatomic particle with an effective rate. Protons are sure collectively in an atom's nucleus because of the strong nuclear force. Neutrons are a type of subatomic particle without a charge they are impartial.
Protons are definitely charged debris in the nucleus of an atom. every detail in nature or made in a lab has as a minimum one proton. The mass of a proton is the same as a neutron however 1840x more than the mass of the electron. Electrons are negatively charged particles that orbit across the outdoors of the nucleus.
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Which of the following are properties of an ideal gas? No answer text provided No answer text provided each particle has a negligible volume compared to its surroundings individual particles are not attracted to nor repel each other gas particles move randomly in all directions at the same average kinetic energy at constant temperature collisions between gas particles are elastic [ Select Questi the volume of gas is directly proportional to the number of moles of that gas when temperature the volume of a gas is inversely proportional to the pressure exerted by that gas when temperature Define th the volume of gas is directly proportional to the temperature of that gas when pressure and Avogadro's Law [ Select ] Boyle's Law [ Select Charles' Law (Select]
The volume of the gas particles is insignificant. The gas particles are all the same size and have no intermolecular interactions (attraction or repulsion) with one another.
What are the properties of an ideal?The volume of the gas particles is insignificant. The gas particles are all the same size and have no intermolecular interactions (attraction or repulsion) with one another. According to Newton's Laws of Motion, the gas particles travel at random. The collisions between the gas particles are completely elastic, with no energy loss.When compared to the entire volume of the gas, the real volume of the gas molecules is minimal. v. When chilled and squeezed, real gases liquefy at low temperatures. Even at low temperatures, ideal gases cannot be liquified, but they continue to obey Charles' rule and eventually occupy zero volume at 0 K.The phrase ideal gas refers to a hypothetical gas made up of molecules that adhere to a few rules: The molecules of an ideal gas do neither attract or repel one another. The sole interaction between perfect gas molecules would be an elastic collision when they collided or an elastic collision with the container's walls.To learn more about Ideal gas refer,
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when 0.20 m nh4cl(aq) and 0.20 m naoh(aq) are mixed, the reaction represented by the equation above occurs and a strong smell of ammonia, nh3, is observed. based on this information, which of the following statements is true? A).
NH4+ (aq) acts as a Brønsted-Lowry base.
B
NH4+ (aq) is a stronger acid than H2O(l) is.
C
NH3(aq) is a stronger base than OH(aq) is.
D
NH, (aq) and Cl(aq) are a conjugate acid-base pair.
NH4+(aq)NH4+(aq) is a stronger acid than H2O(l)H2O(l) is.
An inorganic substance with the formula NH4Cl, ammonium chloride is a white, crystalline salt that is very soluble in water. Ammonium chloride solutions have a little acidic pH. It is referred to as sal ammoniac in the mineralogic form in which it occurs naturally. The mineral is frequently created by the condensation of gases obtained from coal on burning coal heaps. It can also be found near some kinds of volcanic vents. It mostly serves as a fertilizer and flavoring for some varieties of licorice. It is a byproduct of the interaction between ammonia and hydrochloric acid.
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the atomic masses of 35cl (75.53%) and 37cl (24.47%) are 34.968 amu and 36.956 amu, respectively. calculate the average atomic mass of chlorine. the percentages in parentheses denote the relative abundances.
Chlorine has an average atomic mass of 35.4566amu. There are 34.968 amu and 36.956 amu, respectively, with the atomic masses of 35cl (75.53%) and 37cl (24.47%).
The weighted average of an element's naturally occurring isotopes' atomic masses is the element's average atomic mass. AM = (p1m1 + p2m2 +... + pnmn) / 100%, where AM is the average atomic mass, is the weight utilised in this calculation for the percentage abundance of a specific isotope in nature.
Chemical element chlorine has the symbol Cl and atomic number 17. It is the second-lightest halogen, and although it is between fluorine and bromine on the periodic table, most of its properties fall somewhere in the middle. At room temperature, chlorine is a yellow-green gas.
34.968*0.7553 = 26.411\s2. 36.965*0.2447 = 9.0453
Chlorine has an average atomic mass of (26.11+ 9.0453) = 35.4566amu
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Is concentration and mole same?.
Molarity is a unit of concentration that specifically refers to the number of moles of solute per liter of solution.
Molarity is the most effective way of expressing the concentration of a solute in a solution. Molarity is expressed as the total number of moles of solute per liter of solution. Molarity is defined as the number of moles of solute per liter of solution. Molarity is also called the molarity of a solution.
Another way to express concentration is the number of moles of solute per unit volume of solution. Among all quantitative measures of concentration, molarity is the most commonly used by chemists. Molarity is defined as the number of moles of solute per liter of solution. The number of solutes is the same. However, the volume of the solution is greater than the weight of the solvent.
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how many molecules of each of the cofactors are produced when these two acetyl-scoa molecules pass through the citric acid cycle?
Cofactors are produced when these two acetyl-scoa molecules pass through the citric acid cycle is ,the passage of two acetyl-CoA through the citric cycle creates 2 ATP, 6 NADH, and 2 FADH2
What is Molecules?
The smallest unit of a substance that retains its composition and properties is a molecule. It is constructed of two or more atoms connected by chemical bonds.
Atoms are the fundamental unit of an element. They consist of a nucleus that is encircled by electrons. If an atom's electron shell is not quite complete, it is said to have valence electrons. When two or more atoms collaborate to share their valence electrons from the outer shell, a chemical (covalent) relationship is established and a lower energy state is reached. Atomic bonding causes the release of energy in an exothermic reaction.
When only two atoms join, they form diatomic molecules. Carbon monoxide (CO), which consists of a single carbon atom and a single oxygen atom, is an illustration of a diatomic molecule. It is known as a homonuclear diatomic molecule if the two atoms are from the same element, such as oxygen (O2) and nitrogen (N2). More than two atoms make up polyatomic molecules like water (H2O) and carbon dioxide (CO2). Polymers are larger molecules that can contain thousands of atoms.
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What does double minus mean in maths?.
The double minus i.e. double negative results in positive sign.i.e plus.
To do mathematical operations between integers, we need to remember a basic concept of multiplying of signs,
multiplication of different signs
(-)(-)=+(+)(+)=+(-)(+)=-(+)(-)=-Examples:
-4-(-3)=-4+3=-1,
6+(-5)=6-5=1
Thus, here double minus i.e. double negative results in positive sign.i.e plus.
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if the pka1 of a diprotic acid is 2.90, what is the ph of a.10 m solution of this acid that has been one quarter neutralized?
A diprotic acid has a pka1 of 2.90 and a ph of 2.42 when it is dissolved in water at a concentration of 10.10 m.
2.90+log(0.025/0.075)
2.90+ (-0.48)=2.42 pH
Any acid with two hydrogen atoms in it that can be ionized or released in water, such as carbonic acid and sulfuric acid. With a known concentration of NaOH solution, a diprotic acid is titrated. Molar mass, also known as molecular weight, is measured in grams per mole of diprotic acid. You can determine the acid's mass in grams by weighing the original sample. By measuring how much NaOH titrant is required to reach the first equivalence point, moles can be identified. Dibasic or diprotic acid is an acid that has two available protons for donation. Dibasic salt is a salt that has two cations in place of two hydrogen atoms in the parent acid. a dicarboxylic acid ester known as a dibasic ester.
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which nuclear decay process decreases the neutron/proton ratio?a.alpha emissionb.beta emissionc.electron captured.positron emission
Are beta emission with a lower neutron/proton ratio was caused by nuclear decay.
What is electron example?The electron, as smallest constituent part of an atom, has to have a negative charge. Proton and electrons are both present in an equal proportion in a neutral atom. Each hydrogen atom only contains one proton or electron. On the other hand, an atom of uranium has 92 protons, which translates to 92 electrons.
What is in a electron?An negative charges subatomic particle known as an electron can either be free or attached to an atom (not bound). One of the three principal types of atoms within an atom is an electron that is bonded to it; other 2 were protons and neutrons.
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How did the uncertainty principle influence thinking about the arrangement of electrons in atoms.
The Heisenberg uncertainty principle states that we can't recognize each the power and role of an electron. Consequently, as we examine greater approximately the electron's position, we recognize much less about its energy, and vice versa.
Formulated through the German physicist and Nobel laureate Werner Heisenberg in 1927, the uncertainty principle states that we can not know both the location and pace of a particle, inclusive of a photon or electron, with ideal accuracy, the greater we nail down the particle's function, the less we know approximately its speed and vice.
The Heisenberg uncertainty principle states that it's miles impossible to concurrently determine each the location and the velocity of a particle. The detection of an electron, as an example, would be made by way of its interplay with photons of light.
Heisenberg's Uncertainty principle states that there is inherent uncertainty inside the act of measuring a variable of a particle. Commonly carried out to the position and momentum of a particle, the principle states that the more exactly the position is known the more unsure the momentum is and vice versa.
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One-, two-, and three-dimensional free electron gases. Consider the sommerfeld model for the free electron in 1, 2, and 3 dimensions. Assume that the dimensions of the crystal are length l, area a, or volume v, respectively. Take the orbital degeneracy as one (as treated in class), and the spin degeneracy as gs (two in class). Show that for the various dimensions the values of kf, ef, and n(e) are:
A collection of unbound electrons in a metal conductor or a vacuum.
Why is it referred to as a free electron?Since they are not attached to the nucleus and do not exhibit a strong electrostatic force of attraction, they are known as free electrons.
The particles are arranged in a predictable pattern and are close together. The outside electrons of metal atoms are loose, creating a "sea" of delocalized or free negative charge around the densely packed positive ions. Free electrons are the name given to these free electrons. They have unrestricted movement throughout the metallic building.
A flat form or a shape with two dimensions—length and width—is known as a two-dimensional (2D) shape. Shapes that are two dimensional, or 2D, lack thickness.
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which species are more likely to act as ligands? select all that apply. which species are more likely to act as ligands?select all that apply. neutral molecules that are polar positively charged ions neutral molecules that are nonpolar negatively charged ions
The species that could be able to act as ligands are the following;
Neutral molecules that are polarNegatively charged ionsWhat are ligands?The term ligands has to do with a substance that can be able to attract a metal ion or a metal atom. It is therefore common to see that a ligand would have a lone pair of electrons or a negative charge that can be used to attract the metal atom or the metal ion.
We can see so many example of the ligands that can be found in the biological systems as well as the ligands that can be able to combine with metal ions in the area of coordination chemistry as we know.
We can now see that the ligands are neutral molecules or sometimes negatively charged ions.
The negative charge as have been said before are used in the process of binding.
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Melanocytes use many enzymes to produce melanin. Based on their function, you would expect melanocytes in the skin to have a higher than usual number of.
Given their purpose, melanomas in the skin should have a greater proportion of ribosomes than is typical.
How does melanin get damaged?
Melanin levels in the skin can only be briefly reduced. Additionally, reducing sun exposure and using sunscreen will help reduce melanin & improve skin tone. However, since melanin is regulated by genetic factors, there isn't any permanent way to lower it.
What causes the melanocyte population to grow?
Exposure to UV radiation increases the pituitary's release of the hormone melanocyte-stimulating hormone. Myocyte peptide release is not believed to be regulated by a strong feedback mechanism, in contrast to other hormones.
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study the map. how might the earth's features change over time as the seismic activity along the san andreas fault continues
If the seismic activities of san Andrea's fault continues great earth quakes will occur in earth. The drift rate of earth crest will be unpredictable there.
What is San Andrea's fault ?The crust of the Earth is divided into a number of "plates" that have been gently migrating over its surface for millions of years. In western California, two of these tectonic plates collide, and the San Andreas fault separates them.
Along the fault, earthquakes occur as the Pacific Plate, which is on the west, shifts northwestward in relation to the North American Plate, which is on the east. The San Andreas is the "master" fault in a complex network of faults that rips through the rocks along the California coast.
Over the course of a hundred or more years, the portions that cause large earthquakes are locked and silent. When the strain is released, it creates massive earthquakes.
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determine the molarity of a h2so4 aqueous solution that is 12.5% by mass given that its density is 1.113 g/cm3.
The molarity of the sulphuric acid is 1.426 moles/ L.
What is the molarity (M) of a solution?
It is the number of moles of solutes per liter of solution.
The solution is a mixture of solute and solvent.
Molarity can be calculated by using the following formula:
[tex]M= \frac{n}{V}[/tex]
Where,
M= Molarity of the solution
n= Number of moles of solute
V= volume of solution in liters
Calculation:
12.5% of [tex]H_{2} SO_{4}[/tex] means 12.5 g of sulphuric acid are present in the 100g solution.
Hence, the mass of sulphuric acid= 12.5 g
The mass of the given solution= 100 g
The density of the given solution= 1.13 g/[tex]cm^{3}[/tex] = 1.13 g/ml
The volume of the solution can be calculated using the following formula:
Volume = [tex]\frac{Mass}{Density}[/tex]
The volume of 100g of the solution = [tex]\frac{100}{1.113} =89.84 ml[/tex]
The volume (V) of solution in liters= 0.89L
The number of moles (n) of sulphuric acid = [tex]\frac{12.5}{98} = 0.127 moles[/tex]
Hence, the Molarity of the given solution = [tex]\frac{0.127}{0.089} = 1.426 moles/L[/tex]
The molarity of the sulphuric acid is 1.426 moles/ L.
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Homonuclear dianions contain 2 atoms of the same element and an overall charge of -2. some dianions are stable enough to exist in compounds, while others are unstable and have only been detected in the gas phase. The bond order of the molecular ion NZ is Х For comparison, the bond order of the molecule N is
B2 has a bond order of 1.
Bond order is the number of electron bonding pairs that exist between two atoms. An unmarried bond has a bond order of one in a covalent bond between atoms, a double bond has a bond order of two, a triple bond has a bond order of three, and so on.
Calculation:-
for b2 = 1s2 1s*2 2s2 1s*2 2Px1 = 2Py1
(Nb - Na)/2 bond order
= 6 - 4 /2
= 1.
Bond order, as described by Linus Pauling, is defined by the difference in the number of bonds and anti-bonds. The number of electron pairs between two atoms determines the bond order. In diatomic nitrogen NN, for example, the bond order between the two nitrogen atoms is three.
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Initially a beaker contains 225. 0 ml of a 0. 350 m mgso4 solution. Then 175. 0 ml of water are added to the beaker. Find the concentration of the final solution. What is the final volume? ml what is the new concentration? m.
If one has molecular weight in Daltons than diffusion or osmosis take place by molecules move around.
What is diffusion?
diffusion is a type of cellular transport. Since the diffusion does not require the energy (ATP) to take the place, it is considered as a form of passive transport. There are three types of diffusion: there are -simple diffusion, osmosis and facilitated diffusion. During the time of diffusion, molecules move from an area of high concentration to an area of the low concentration.
Explanation -
The rate of diffusion is the affected by the molecular weights of the molecules that is diffusing. The heaviest the solutes is, the slower the molecules moveing around. Slower the moving molecules diffuse at it slower rate than faster the moving ones. Molecules are that are lighter move in faster and therefore have an increases speed of the diffusion.
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when (z)-3-methylhex-3-ene undergoes hydroboration-oxidation, two isomeric products are formed. draw one of the products. draw the molecule on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars. show the appropriate stereochemistry by choosing the dashed or wedged buttons and then clicking a bond on the canvas.
An alkene can become an alcohol through a two-step chemical process called hydroboration-oxidation. Borane (BH3) is added during the hydroboration process. Cyclohexanol is produced by the hydroboration-oxidation of cyclohexene.
How does the hydroboration-oxidation technique work?In organic chemistry, the hydroboration-oxidation process is a two-stage hydration reaction that converts an alkene into alcohol. As a result, the hydroboration process transforms alkynes into aldehydes and alkenes into neutral alcohols.
Give an example of the hydroboration-oxidation reaction.The addition of borane followed by oxidation is referred to as the hydroboration-oxidation reaction. For instance, the hydroboration-oxidation reaction of propene results in propan-1-ol. The addition product of this reaction between propene and diborane (BH3)2 is trialkyl borane.
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it takes 163 kj/mol to break an nitrogen-nitrogen single bond. calculate the maximum wavelength of light for which an nitrogen-nitrogen single bond could be broken by absorbing a single photon.
734 nm is the maximum wavelength of light for which an nitrogen-nitrogen single bond could be broken by absorbing a single photon.
Wavelength is the gap between identical points within the adjacent cycles of a waveform sign propagated in space or along a cord. In wi-fi systems, this length is generally laid out in meters, centimeters or millimeter.
The wavelength of light is an vital belongings for it's miles this that determines the nature of the light. Red light has a unique wavelength to that of blue light and green light has a special wavelength from each of them.
The wavelength is the distance between two wave crests, and it is going to be the identical for troughs. The frequency is the range of vibrations that pass over a given spot in one second, and it's miles measured in cycles according to second (Hz) (Hertz).
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Is a pictogram required on a chemical label?.
According to the Hazard Communication standard, all hazardous chemicals must be labeled with specified elements including pictograms to alert the users of the chemical hazards.
What is a pictogram?A pictogram can be described as a is a graphic symbol that conveys its meaning through its pictorial resemblance to a physical object. Pictographs are commonly used in writing and graphic systems in which the characters are in extent pictorial in appearance. A pictogram can be used in subjects such as tourism, leisure, and geography.
Pictography can be a form of writing which uses representational, pictorial drawings to cuneiform and hieroglyphic writing, which uses drawings as phonetic letters. Some pictograms, such as Hazards pictograms can play as an element of formal languages.
Sets of pictographs are the laundry symbols utilized on clothing tags and the chemical hazard symbols which are standardized by the GHS system.
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