Homework Help: chemistry

Posted by mj on Monday, March 11, 2013 at 7:19am.

20mL ethanol(density=o.789g/mol) is dissolved in sufficient water to produce a 200mL solution. the density of the solution is 0.982g/mL. what is the molarity?

chemistry - DrBob222, Monday, March 11, 2013 at 10:58am
Use density of ethanol to convert mL ethanol to grams. Then mol = grams/molar mass.

Then M = mols/L solution.

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