What mass of glucose (C6H12O6) must dissolve in 400.0 g of ethanol to make a 1.60 m solution?

2 answers

m = molality = mols/kg solvent.
1.60 = mols glucose/0.4000). Solve for mols glucose, then mols = grams/molar mass. You know molar mass and mols, solve for grams.
3.225
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