Asked by Haley

Explain why the solubility of KHTar in 0.100 M NaCl solution differs from that in pure water?


Explain why the solubility of KHTar in the mixed KCL - NaCl solution differs from that in the 0.100 M NaCl.
Answered by Haley
As the concentration of KCl in a solution increases, the solubility of KHTar ______________ because ___________________
Answered by DrBob222
Were you performing an experiment involving ionic strength?
Answered by Haley
It was a solubility lab for KHTar
Answered by DrBob222
I assume the answser is yes; NaCl increases the ionic strength and substances are more soluble as ionic strength increases.
Answered by Haley
What would the answer be to the second part? Explain why the solubility of KHTar in the mixed KCl- NaCl solution differs from that in 0.100 M NaCl
Answered by DrBob222
What is the concn of the KCl and NaCl in the mixture?
Answered by Haley
Concentration of KCl is 0.04 M and NaCl is 0.06 M
Answered by DrBob222
You are adding a common ion and that shifts the equilibrium to the left making it less soluble. See the link below.

http://www.digipac.ca/chemical/mtom/contents/chapter4/commonionlab.htm
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