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OpenStudy (anonymous):
6. The molecular weight of NaCl is 58. If you are asked to prepare 2 Liters of a 0.5M solution, how much NaCl do you need to use?
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OpenStudy (aaronq):
use the molarity definition M=n/L of solvent n=mass/molar mass 0.5 M = (x grams/50 g/mol)/2 L
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