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18 June, 17:08

What is the molarity of a solution that is made by adding 57.3 g of MgO to 500.0 mL of solution?

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  1. 18 June, 19:04
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    2.843 M

    Explanation:

    Molarity = moles / volume

    Milliliters to liters:

    500 mL =.500 L

    Grams to moles:

    MgO molar mass = 16.00 + 24.31 = 40.31 g/mol

    57.3 g x 1 mol / 40.31 g = 1.421 mol

    Molarity:

    1.421 mol /.500 L = 2.843 M
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