Question

Calculate the molarity of solution which is perpared by dissolving 28.4 g ofNa2So4 in 400 cm 3 of solution of solutions prepared as sloution​

Answer 1

Explanation:

Weight of NaOH=4g

Molecular weight of NaOH=40G

Volume of solution is 250ml

Molarity = ?

M=

MW

W

×

Vinml

1000

M=

40

4

×

250

1000

0.4M

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