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vera_ewing

  • one year ago

Which of the following is true of the solubility product constant? A. It is an equilibrium position. B. Its value changes in the presence of a common ion. C. It is an equilibrium constant. D. It is the product of the initial concentrations of the ions in a solution.

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  1. vera_ewing
    • one year ago
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    @Hoslos @rvc

  2. rvc
    • one year ago
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    i dont remember :/ maybe B

  3. anonymous
    • one year ago
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    The constant determines the way moles dissolve per litre of a solution.

  4. vera_ewing
    • one year ago
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    So which one is it? @Hoslos

  5. anonymous
    • one year ago
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    D.

  6. vera_ewing
    • one year ago
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    It was C.

  7. anonymous
    • one year ago
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    My mistake.

  8. vera_ewing
    • one year ago
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    It's okay :)

  9. vera_ewing
    • one year ago
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    For an endothermic dissolution process, which of the following would you observe on cooling a saturated solution by 10°C? A. An increase in precipitation B. A decrease in volume C. An increase in solubility D. A decrease in pressure

  10. anonymous
    • one year ago
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    I am not sure about this one. What do you say @sweetburger ?

  11. sweetburger
    • one year ago
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    Well if the dissolving process is endothermic that means energy is a reactant. If we are cooling the solution then we are taking energy out which is decreasing the amount of reactants which induces a stress on the system which would in turn cause more reactant to be formed which would result in precipitation.

  12. sweetburger
    • one year ago
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    Thats just my idea though.

  13. vera_ewing
    • one year ago
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    So which one?

  14. sweetburger
    • one year ago
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    I think it should be A.

  15. vera_ewing
    • one year ago
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    Thanks!

  16. vera_ewing
    • one year ago
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  17. vera_ewing
    • one year ago
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    How about this one?

  18. sweetburger
    • one year ago
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    Well the salts with the largest Ksp value will come first which would be Salt D with a very large Ksp of 38.65. Then second would be A with a Ksp of 9.21x10^-8. So the list so Far Is D,A and then the only answer choice which is arranged like this is D. being D,A,B,C. If you continued to look at the Ksp of the remaining salts you would notice that D,A,B,C holds true.

  19. vera_ewing
    • one year ago
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    Thanks! This one?

  20. rvc
    • one year ago
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    keep up the good work guys @sweetburger @Hoslos

  21. rvc
    • one year ago
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    D

  22. rvc
    • one year ago
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    am i right?

  23. sweetburger
    • one year ago
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    I disagree as CaF2 has a greater Ksp than CaCO3.

  24. rvc
    • one year ago
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    lol messed yeah correct C

  25. vera_ewing
    • one year ago
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    What is the nature of a solution when it has reached its solubility equilibrium? A. The solution is saturated. B. The temperature of the solution always rises. C. The solution is undergoing precipitation. D. The Ksp of the solution is greater than its Q.

  26. anonymous
    • one year ago
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    A.

  27. sweetburger
    • one year ago
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    I agree with @Hoslos

  28. rvc
    • one year ago
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    i go with A

  29. vera_ewing
    • one year ago
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    In which of the following cases will there be precipitation? A. Q < Ksp B. Q = Ksp C. Q << Ksp D. Q > Ksp

  30. rvc
    • one year ago
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    D ?

  31. anonymous
    • one year ago
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    I agree with @rvc.

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