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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?

mass fraction = g solute/g soln 5.34g/(152 + 5.34) then change to percent by multiplying by 100.

I got 3.39%, correct? Thanks

3.40%

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