Homework Help: chemistry

Posted by Louise on Friday, March 16, 2012 at 10:20am.

What is the molarity of 100 ml of ethanol dissolved in 1.5 liters of water? Ethanol has a specific gravity of 0.789, and its molecular weight is 46 g/mol.

chemistry - DrBob222, Friday, March 16, 2012 at 5:08pm
Use density to calculate mass ethanol.
moles = grams/molar mass
Then use M = moles/L soln

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