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View Full Version : What mass of 30.0% Ca(NO3)2 solution contains 60.0 grams of water?

ilovechem
Dec 6, 2010, 08:06 PM
I don't understand how to find the answer
DrBob1
Dec 6, 2010, 08:28 PM
If the solution is 30% calcium nitrate then it must be 70% water, right? So solve the euqation: 60 grams is 70% of X. And there, you'll have it.