A. 4.00
B. 2.50
C. 0.40
D. 0.25
Correct Answer:
Option B – 2.50
Explanation
Solubility = number of moles of solution/vol of solution
100g of water = 100 cm³ = 0.1 dm³.
CuSO4 = 160g/mol
No of moles of CuSO4 in 40g = 40/160
= 0.25 mol.
Solubility = 0.25/0.1
= 2.5 moldm−³.
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