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28 February, 05:28

A solution contains 0.400 g of naoh in 20.0 ml of solution. what is its molarity?

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  1. 28 February, 06:03
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    Molar mass NaOH = 40.0 g/mol

    number of moles : 0.400 / 40.0 = 0.01 moles

    20.0 mL in liters = 20.0 / 1000 = 0.02 L

    M = n / V

    M = 0.01 / 0.02

    = 0.5 M
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