What is the molarity of 0.50 liter of an aqueous solution that contains 0.20 mole of NaOH (gram-formula mass = 40. g/mol)?

0.4mol/L

Explanation:

Data obtained from the question include:

Number of mole of NaOH(solute) = 0.20 mole

Volume of solution = 0.50 L

Molarity =.?

Molarity is simply mole of solute per unit litre of a solution. This can represented mathematically as:

Molarity = mole of solute /Volume of solution

Molarity of NaOH = 0.2mol/0.5L

Molarity of NaOH = 0.4mol/L

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