Question

A solution of ethanol (C2H50H) in water is prepared by dissolving 76.9ml of ethanol (density0.79g/cm3) in enough water to make 0.25L of solution. What is the molarity of ethanol in this solution



Who helps me
Use density ethanol to calculate grams.
Convert grams ethanol to mols. mols = grams/molar mass.
Then M = mols/L soln.
How much heat (in kilojoules) is evolved or absorbed in the reaction of 2.20g of Na with H2O?

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