Chemistry, 23.07.2019 00:10 kimjooin02
Potassium hydroxide is used to precipitate each of the cations from their respective solution. determine the minimum concentration of koh required for precipitation to begin in each case. a. 0.015 m cacl2 b. 0.0025 m fe(no3)2 c. 0.0018 m mgbr2
Answers: 2
Chemistry, 22.06.2019 02:50
Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.
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