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4 June, 06:13

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) ?

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  1. 4 June, 06:33
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    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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