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2. Two solutions have the following activities: i. 0.02 mol L-' F and 0.01 mol L-' Ca²+ ii. 0.0001 molL-' F and 0.0002 mol L' Ca²+ Calculate the saturation indices of the solutions versus fluorite (pKsp = 10.6) and how much fluorite would precipitate or dissolve in order to achieve equilibrium.

2. Two solutions have the following activities: i. 0.02 mol L-' F and 0.01 mol L-' Ca²+ ii. 0.0001 molL-' F and 0.0002 mol L' Ca²+ Calculate the saturation indices of the solutions versus fluorite (pKsp = 10.6) and how much fluorite would precipitate or dissolve in order to achieve equilibrium.

Appl Of Ms Excel In Analytical Chemistry
Appl Of Ms Excel In Analytical Chemistry
2nd Edition
ISBN:9781285686691
Author:Crouch
Publisher:Crouch
Chapter9: Complexometric And Precipitation Titrations
Section: Chapter Questions
Problem 9P
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1. Calculate the stability field of gibbsite Al(OH)3 versus its aqueous species on the basis of the below listed four equilibrium equations. Al(OH)3(gibbsite) + 3H+ = A13+ + ЗН20() Ks0 = 109.36 Al" + H,O(1) = Al(OH)** + H* Al3* + 2H2O(1) = Al(OH)2* + 2H* Al³* + 4H2O(1) = Al(OH)4¯ + 4H* K. sl =104.99 K s,2 =10-10.13 K s,4 =10-22.05 2. Two solutions have the following activities: 0.02 mol L-' F and 0.01 mol L' Ca²+ 0.0001 molL-'F and 0.0002 mol L' Ca²+ i. ii. Calculate the saturation indices of the solutions versus fluorite (pKsp = 10.6) and how much fluorite would precipitate or dissolve in order to achieve equilibrium. -
Transcribed Image Text:1. Calculate the stability field of gibbsite Al(OH)3 versus its aqueous species on the basis of the below listed four equilibrium equations. Al(OH)3(gibbsite) + 3H+ = A13+ + ЗН20() Ks0 = 109.36 Al" + H,O(1) = Al(OH)** + H* Al3* + 2H2O(1) = Al(OH)2* + 2H* Al³* + 4H2O(1) = Al(OH)4¯ + 4H* K. sl =104.99 K s,2 =10-10.13 K s,4 =10-22.05 2. Two solutions have the following activities: 0.02 mol L-' F and 0.01 mol L' Ca²+ 0.0001 molL-'F and 0.0002 mol L' Ca²+ i. ii. Calculate the saturation indices of the solutions versus fluorite (pKsp = 10.6) and how much fluorite would precipitate or dissolve in order to achieve equilibrium. -
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