If a solution is prepared by dissolving 7.7 g of lithium iodide, LiI, in enough water to make 400. mL of solution, what is the %(w/v) of LiI?

A) 0.96%
B) 1.9%
C) 3.9%
D) 7.7%

answer

B

= (7.79 / 400) x 100 =1.94%