If M2+ is Ca2+ and Z2- is CO32-, would you raise or lower the pH if you wanted to make a precipitate? Why? {Ca(OH)2 is a strong base and H2CO3 is a weak acid}

Chemistry by OpenStax (2015-05-04)
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ISBN:9781938168390
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
Chapter15: Equilibria Of Other Reaction Classes
Section: Chapter Questions
Problem 40E: A volume of 0.800 L of a 2104 -M Ba(NO3)2 solution is added to 0.200 L of 5104M Li2SO4. Does BaSO4...
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If M2+ is Ca2+ and Z2- is CO32-, would you raise or lower the pH if you wanted to make a precipitate? Why? {Ca(OH)2 is a strong base and H2CO3 is a weak acid}

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The reaction between the considered strong base and weak acid proceeds as,

Chemistry homework question answer, step 1, image 1

The solubility product of the salt formed is,

Chemistry homework question answer, step 1, image 2

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