A solution is prepared by dissolving 7.7 g of lithium iodide, LiI, in enough water to make 400.0 mL of solution. What is the %(w/v) of LiI?
A) 0.96%
B) 1.9%
C) 3.9%
D) 7.7%

Name: A solution is prepared by dissolving 7.7 g of lithium iodide, LiI, in enough water to make 400.0 mL of solution. What is the %(w/v) of LiI? A) 0.96% B) 1.9% C) 3.9% D) 7.7%
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Question

Quizplus · Accepted Answer

%(w/v) = (mass of solute (g)/volume of solution (mL)) x 100%
mass of solute = 7.7 g
volume of solution = 400.0 mL 
%(w/v) = (7.7 g/400.0 mL) x 100% = 1.9%

A Solution Is Prepared by Dissolving 7