Homework Help: Chemistry

Posted by Julie on Friday, April 29, 2011 at 10:03am.

A lab assistant prepared a potassium chloride solution for her class by dissolving 5.34 g of KCl in 152g of water. What is the mass percent of the solution she prepared?

Could you help me set this up/show me how to do this problem?

Chemistry - DrBob222, Friday, April 29, 2011 at 1:12pm
mass fraction = g solute/g soln
5.34g/(152 + 5.34) then change to percent by multiplying by 100.
Chemistry - Julie, Friday, April 29, 2011 at 4:27pm
I got 3.39%, correct?
Thanks

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