The saturated CuSO4(aq) shown above [VISUAL] is left uncovered on a lab bench at a constant temperat — Equilibrium Chemistry Question
Question
The saturated CuSO4(aq) shown above [VISUAL] is left uncovered on a lab bench at a constant temperature. As the solution evaporates, 1.0 mL samples of the solution are removed every three days and the [SO42-] is measured. Which of the following is true about the [SO42-] in the solution over time?
A.
It increases because the volume of water decreases.
B.
It decreases because copper sulfate precipitates out of the solution.
C.
It first increases and then decreases.
D.✓ Correct
It remains constant because the solution is saturated and solute precipitates to keep the concentration of ions constant.
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