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If 33.7 grams of LiOH dissolve in enough water to make a 231-gram solution, what is the concentration in percent by mass? Answer 8.73% LiOH 14.6% LiOH 6.85% LiOH 12.7% LiOH
if you know grams of solute and grams of total solution, what's the percentage?
33.7g of LiOH get dissolved in water. That's the mass of solute. The solution has a final mass of 231g. That's the mass of the solution. Divide.
The answer is 14.6%. It's a simple division: 33.7 divided by 231, times 100 to get the percent.