1. Do you expect the solubility of Borax to increase or decrease as temperature increases? Select the option that best explains why. ΔΗ A. Solubility will increase, because as Tincreases the therefore K will get larger. term becomes smaller RT ΔΗ B. Solubility will increase, because as Tincreases the term becomes smaller RT Choose... therefore K will get smaller. C. Solubility will decrease, because as Tincreases the therefore K will get smaller. ΔΗ term becomes smaller RT AH° D. Solubility will decrease, because as Tincreases the therefore K will get larger. term becomes smaller RT

Chemistry by OpenStax (2015-05-04)
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Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter13: Fundamental Equilibrium Concepts
Section: Chapter Questions
Problem 101E: A 0.010 M solution of the weak acid HA has an osmotic pressure (see chapter on solutions and...
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1. Do you expect the solubility of Borax to increase or decrease as temperature
increases? Select the option that best explains why.
ΔΗ
A. Solubility will increase, because as Tincreases the
therefore K will get larger.
term becomes smaller
RT
ΔΗ
B. Solubility will increase, because as Tincreases the
term becomes smaller
RT
Choose...
therefore Kwill get smaller.
ΔΗ'
C. Solubility will decrease, because as Tincreases the
term becomes smaller
RT
therefore Kwill get smaller.
ΔΗ'
D. Solubility will decrease, because as Tincreases the
term becomes smaller
RT
therefore Kwill get larger.
2. Why was it necessary to make sure that some solid was present in the main solution
before taking the samples to measure Ksp? Select the option that best explains why.
A. To make sure no more sodium borate would dissolve in solution.
B. To ensure the dissolution process was at equilibrium.
C. To make sure the solution was saturated with sodium and borate ions.
Choose...
D. All of the above
Transcribed Image Text:1. Do you expect the solubility of Borax to increase or decrease as temperature increases? Select the option that best explains why. ΔΗ A. Solubility will increase, because as Tincreases the therefore K will get larger. term becomes smaller RT ΔΗ B. Solubility will increase, because as Tincreases the term becomes smaller RT Choose... therefore Kwill get smaller. ΔΗ' C. Solubility will decrease, because as Tincreases the term becomes smaller RT therefore Kwill get smaller. ΔΗ' D. Solubility will decrease, because as Tincreases the term becomes smaller RT therefore Kwill get larger. 2. Why was it necessary to make sure that some solid was present in the main solution before taking the samples to measure Ksp? Select the option that best explains why. A. To make sure no more sodium borate would dissolve in solution. B. To ensure the dissolution process was at equilibrium. C. To make sure the solution was saturated with sodium and borate ions. Choose... D. All of the above
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