When 250 cm³ of a saturated solution of CuSO4 at 30°C was evaporated to dryness; 5.0 g of the salt was obtained. What is the solubility of the salt at 30°C? [CuSO4 = 160]

A. 0.031
B. 0.125
C. 0.640
D. 1.560

Correct Answer:

Option B = 0.125

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