# Chemistry

calculate the molarity of a solution made by dissolving 0.750 grams of Na2SO4 in enough water to form exactly 850 mL of solution.

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1. that is right. but if it is 0.850 grams of Na2s04 it is completely diffrent.

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2. I don't know what Aron is talking about.
mols Na2SO = grams/molar mass = ?
M = mols/L = ?mols/0.850L = zxx

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