Question

How Many grams of NaOH are used to prepare 500.0 Ml of a 0.500 M solution?

Answer 1

Solution)

We know, 1 Litre= 1000 ml

So, 500 ml= 0.5 L

Moles of solute= Molarity* litres of solution

0.5 M/ 1 litre*0.5 L= 0.25 mol

We know, molar mass of NaOH= 40 g/mol

So,

0.25 mol*40 g/ 1 mol= 10 g (Ans)

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