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24 May, 07:48

A beaker with saltwater was left uncovered and all water evaporated. If there are 0.505 g of NaCl left in a beaker that originally contained 75.0 mL of saltwater, what must have been the concentration of the original solution?

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  1. 24 May, 08:26
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    Convert. 505 g of NaCl to moles =.00864

    75.0 mL =.0750 L

    .00864 mol /.0750 L =.12 M of NaCl
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