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At 20C, NaCl solubility is 35.9 g; how much water we need at least in order to dissolve 50 g NaCl? Hint: to use least

At 20C, NaCl solubility is 35.9 g; how much water we need at least in order to dissolve 50 g NaCl?

Hint: to use least amount of water, the solution has to be saturated.

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