Calcium carbonate is used to form exoskeletons.It has a solubility-product constant of 5.0 *10-9.What is the molar concentration of calcium ions in a saturated solution of calcium carbonate?
A) 2.5 *10-9 M
B) 7.1 *10-5 M
C) 3.5 * 10-5 M
D) 5.0 * 10-9 M
E) 4.7 * 10-7 M
Correct Answer:
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