Questions
12) What is Graham's law of effusion? Explain it in words. a) Give two formulas representing...

12) What is Graham's law of effusion? Explain it in words.

a) Give two formulas representing this law. Which is more commonly used?

b) which postulate of the kinetic molecular theory of gases does this law relate to?

In: Chemistry

Explain why: Ionic strength increase then activity coefficient decrease Ionic charge increase then activity coefficient increase...

Explain why:

Ionic strength increase then activity coefficient decrease

Ionic charge increase then activity coefficient increase

Ionic size increase then activity coefficient decrease

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Please explain why dyes attach to natural fibers more readily than synthetic fibers. How do the...

Please explain why dyes attach to natural fibers more readily than synthetic fibers. How do the structures relate?

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Discuss the inaccuracies in the tate equation and explain how a correction factor may be obtained...

Discuss the inaccuracies in the tate equation and explain how a correction factor may be obtained and applied?

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a. explain why we do not worry about low spin complexes in a tetrahedral geometry. (Your...

a. explain why we do not worry about low spin complexes in a tetrahedral geometry. (Your answer should be only one sentence.)

b. Use the Irving-Williams series of ligands to predict if an octahedral complex is likely to be high spin or low spin for the following catalytic/transport active sites:
a) in Photosystem II, the Mn(II)-Cl group
b) in hemerythrin, the Fe(III)-O2H- group

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An ideal Pb2+Pb2+ ion-selective electrode is moved from a 5.69×10−55.69×10−5 M Pb(NO3)2Pb(NO3)2 solution to a 3.22×10−33.22×10−3...

An ideal Pb2+Pb2+ ion-selective electrode is moved from a 5.69×10−55.69×10−5 M Pb(NO3)2Pb(NO3)2 solution to a 3.22×10−33.22×10−3 M Pb(NO3)2Pb(NO3)2 solution at 25 °C. By how many millivolts will the potential of the ion-selective electrode change when it is moved from the first solution to the second solution?

In: Chemistry

If Q > K, the sign of ∆G is .________ Adding an inert solute raises the...

If Q > K, the sign of ∆G is .________

Adding an inert solute raises the boiling point because_______ it the entropy of the solution. If dissolving a salt in water evolves heat, solubility will_______ as temperature increases. Hydrocarbons have low solubility in water because the waters around the solutes become _____, decreasing the_____ .

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List the three factors that you should consider when trying to predict the crystal structure for...

List the three factors that you should consider when trying to predict the crystal structure for a ceramic material. In one to two sentences or bullets explain why each is important.

In: Chemistry

Please rank the following in order of increasing solubility Calcium sulfate Ksp=7.1x10^-5 Calcium Carbonate Ksp=5.0x10^-9 Caclium...


Please rank the following in order of increasing solubility

Calcium sulfate Ksp=7.1x10^-5
Calcium Carbonate Ksp=5.0x10^-9
Caclium Hydroxide Ksp=4.7x10^-6
Calcium Flouride Ksp=3.9x10^-11
Calcium Phosphate Ksp=2.1x10^-33

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Quinine, an alkaloid derived from a tree that grows in tropical rain forests, is used in...

Quinine, an alkaloid derived from a tree that grows in tropical rain forests, is used in the treatment of malaria. Like all alkaloids, quinine is a sparingly soluble weak base: 1.00 g of quinine will dissolve in 1.90 × 102 L of water.

What is the pH of a saturated solution of quinine?

The number of significant digits is set to 2; the tolerance is +/-4%

A 27.4 mL sample of saturated quinine is titrated with 0.00843 M HCl solution. What is the pH at the stoichiometric point of the titration?

In: Chemistry

The equilibrium constant  for the reaction PCl3(g) + Cl2(g) ------- PCl5(g) equals 49 at 230°C. If 0.367...

The equilibrium constant  for the reaction PCl3(g) + Cl2(g) ------- PCl5(g)

equals 49 at 230°C. If 0.367 mol each of phosphorus trichloride and chlorine are added to a 4.00 L reaction vessel, what is the equilibrium composition of the mixture at 230°C?

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discuss three different types of interaction of radiation with matter used in optical instruments giving examples...

discuss three different types of interaction of radiation with matter used in optical instruments giving examples of the instruments based on those interactions

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A solution is 5.66 % by mass NH3 (MM 17.04 g/mol) in water (MM 18.02 g/mol)....

A solution is 5.66 % by mass NH3 (MM 17.04 g/mol) in water (MM 18.02 g/mol). The density of the resulting solution is 0.974 g/mL. What is the mole fraction, molarity and molality of NH3 in the solution?

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DRAW A STRUCTURAL FORMULA FOR ALCOHOL DESCRIBE HOW ALCOHOLS ARE PAIARED

DRAW A STRUCTURAL FORMULA FOR ALCOHOL

DESCRIBE HOW ALCOHOLS ARE PAIARED

In: Chemistry

Tin metal can be obtained by the reduction of tin ions (Sn2+) by Co2+ at 298...

Tin metal can be obtained by the reduction of tin ions (Sn2+) by Co2+ at 298 K: Sn2+ (aq) + Co2+(aq) <--> Sn (s) + Co4+ (aq) , Kc = 1.70

150 mL of 0.200 M Sn(NO3)2 is mixed with 150 mL of 0.250 M Co(NO3)2 at 298 K. What is the concentration of Co4+ at equilibrium? SHOW ALL WORK.

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