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The solubility in moles per dm3 of 20g of CuSO

The solubility in moles per dm3 of 20g of CuSO4 dissolve in 100 of water at 180°C is?

(Cu = 63.5, S = 32, O = 16)

A.

0.13

B.

0.25

C.

1.25

D.

2.00

View answer & explanation

Correct answer is C

Solubility in moles per dm3

No of moles = (20)/(159.5) χ 0.125 moles

in 100 g of moles = (0.125)/(100) χ 1000 = 1.25 moles

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