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Today, 05:02

A 390 mL solutions of 4.6 M HCl is left out over the weekend and 74 mL of solvent evaporates. What is the new concentration of HCl?

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  1. Today, 05:33
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    5.7 M

    Explanation:

    You have. 390 L of 4.6 M HCl.

    .390 L * 4.6 mol/L = 1.794 mol HCl

    .390-.074=.316 L solvent remaining

    1.794 mol/.316 L=5.7 M HCl
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