Write a reaction and calculate molar solubility.?
2016-11-28 9:07 pm
Write a reaction that represents the dissolving of CaSO4 in water. Remember to include the states of matter (example: (g) for gas). Calculate the molar solubility of CaSO4 if Ksp=7.10x10^-5
回答 (1)
2016-11-28 9:32 pm
CaSO4(s) <--> Ca2+(aq) + SO42-(aq)
Ksp = [Ca2+][SO42-] = 7.10X10^-5
Let s = molar solubility. Then, in a saturated solution, [Ca2+] = s = [SO42-]. So:
7.10X10^-5 = s^2
s = 8.43X10^-3 M
Ksp = [Ca2+][SO42-] = 7.10X10^-5
Let s = molar solubility. Then, in a saturated solution, [Ca2+] = s = [SO42-]. So:
7.10X10^-5 = s^2
s = 8.43X10^-3 M
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https://hk.answers.yahoo.com/question/index?qid=20161128130714AAPcbAa