Question

If 8g NaOH is dissolved in 250g H;0 then find mass % of solute in the solution.
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Answer 1

Answer:

The molecular weight of NaOH is 40 g/mol.

The number of moles of NaOH

40 g/mol

5 g

=0.125 moles.

500 ml water corresponds to0.500 L.

The molarity of the solution =

0.500 L

0.125 moles

=0.25 M

Explanation:

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Answer 2

The mass% of the solute is 3.2%