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7 October, 08:55

What is the molarity of a solution prepared by dissolving 10.0g of kno3 in 250 ml of solution

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  1. 7 October, 11:20
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    Mass of KNO3 = 10g

    Molar mass of KNO3 = 101.1032g/mol

    Volume = 250ml = 0.25L

    No of mole on of KNO3 = mass of KNO3/Molar mass of KNO3

    no of mole of KNO3 = 10/101.1032

    No of mole of KNO3 = 0.09891

    molarity of KNO3 = no of mole of KNO3/Vol (L)

    Molarity = 0.09891/0.25 = 0.3956M

    Molarity of KNO3 = 0.3956M
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