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 1

LiOH + W = 231 grams
33.7 + W = 231
W = 197.3 Grams of water.
Concentration = LiOH/(W+LiOH) = 33.7/231
= 0.146 = 14.6%