Jofro14 Jofro14

20-10-2016
Chemistry

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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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tweetynerd21 tweetynerd21

20-10-2016

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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