Question

Determine the Molarity and the strength of a solution of 250 gram of NaOH solution if the volume of the solution is 750g ml?
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Answer 1

Molarity= Moles of solute /ltre of the solution

Now moles of solute (NaOH)

= 250g/40 g/mole

=25/4 mole

Now ,

$molarity = \frac{ \frac{25}{4} \: mole }{0.75 \: litre} \\ \\ molarity = 8.333 \frac{mole}{litre}$

ANSWER = 8.333 M