Homework Help: chemistry

Posted by Anonymous on Thursday, December 9, 2010 at 4:55pm.

In 24 g of a 7.8% by mass solution of CaSO4? How many grams of solute are present gCaSO4? how many grams of solvent are present g solvent?

chemistry - DrBob222, Thursday, December 9, 2010 at 5:54pm
7.8% CaSO4 by mass means
7.8 g CaSO4/100 g solution.

So in 24 g of the solution, there must be
7.8 x (24/100) = ?? g CaSO4
24.0 g solution - g CaSO4 = grams solvent.

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