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24 December, 21:33

What is the molarity of a solution that contains 0.400 mol hcl in 9.79 l solution?

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  1. 24 December, 21:55
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    M = 0.0409 M

    Explanation:

    1) dа ta:

    a) Molarity, M = ?

    b) Number of moles, n = 0.400 mol

    c) Volume, V = 9.79 liters

    2) Formula:

    The definition of molarity is number of moles of solute per volume of solution in liters.

    M = n / V (in liters)

    3) Calculations:

    M = 0.400 mol / 9.79 liter = 0.04086 M

    You must use three significant digits to report the answer correctly, so it is M = 0.0409 M.
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