If evaporation occurs what will change 0.70 molar solution of CuSO4 A. Molarity will increase

B. Molarity will decrease

C. the amount of CuSO4 will decrease

D. No change in molarity or amount of salute

A. Molarity will increase .

Explanation:

Molarity = moles of solute per litre of solution

= moles of solute / volume of solution

If evaporation occurs , volume of solution decreases and moles of solute remains constant . Hence denominator decreases and numerator remains constant .

Hence the molarity increases .

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