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WAEC - Chemistry (2020 - No. 31)

When 250 cm3 of a saturated solution of CuSO\(_4\) 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? [CuSO\(_4\) = 160]

0.031
0.125
0.640
1.560

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