A solution contains 0.0200 M Co and 0.0400 M Ni?+. What is the concentration of the first cation when the second cation: starts to precipitate as Na, CO, is added to the solution? Refer to the table of solubility-product constants for K, values. concentration of the first cation: Can 99% of the first cation be precipitated before the second cation starts to precipitate? no yes not enough information

Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.41PAE: Because calcium carbonate is a sink for CO32- in a lake, the student in Exercise 12.39 decides to go...
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A solution contains 0.0200 M Co?+ and 0,0400 M Ni2+. What is the concentration of the first cation when the second cation
starts to precipitate as Na, CO, is added to the solution? Refer to the table of solubility-product constants for Kp values.
concentration of the first cation:
Can 99% of the first cation be precipitated before the second cation starts to precipitate?
no
yes
not enough information
Transcribed Image Text:A solution contains 0.0200 M Co?+ and 0,0400 M Ni2+. What is the concentration of the first cation when the second cation starts to precipitate as Na, CO, is added to the solution? Refer to the table of solubility-product constants for Kp values. concentration of the first cation: Can 99% of the first cation be precipitated before the second cation starts to precipitate? no yes not enough information
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