what is the molarity of a solution prepared by dissolving 20.0 g of NaOH in enough water to make 0.50 L og solution?

Molarity of a solution = 1 mol / L

Explanation:

Given:

Amount of NaOH =20 g

Amount of water = 0.50 l

Find:

Molarity of a solution

Computation:

1 mol of NaOH = 40 g

So,

Moles of NaOH = 20 / 40 g = 0.50 mol NaOH

Molarity of a solution = moles of solute / Liters of solution

Molarity of a solution = 0.50 / 0.50

Molarity of a solution = 1 mol / L

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