Gypsum is a relatively soft rock made of CaSO4. Rainwater percolates through gypsum, dissolves some of the rock, and eventually becomes saturated with Ca2+ ions and SO2- ions. A geochemist takes a sample of groundwater from a cave and finds that it contains 8.4 x 10-3 M SO2- and 5.8 x 10-3 M Ca²+. (The ratio is not 1:1 because other sulfate rock contributes some of the SO42- ions to the solution.) Use these data to determine the solubility product of CaSO4.

Gypsum is a relatively soft rock made of CaSO4. Rainwater percolates through gypsum, dissolves some of the rock, and eventually becomes saturated with Ca2+ ions and SO2- ions. A geochemist takes a sample of groundwater from a cave and finds that it contains 8.4 x 10-3 M SO2- and 5.8 x 10-3 M Ca²+. (The ratio is not 1:1 because other sulfate rock contributes some of the SO42- ions to the solution.) Use these data to determine the solubility product of CaSO4.

Chemistry by OpenStax (2015-05-04)

1st Edition

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

Chapter11: Solutions And Colloids

Section: Chapter Questions

Problem 11E: Consider the solutions presented: (a) Which of the following sketches best represents the ions in a...

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