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%

Name: 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%
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Question

Quizplus · Accepted Answer

The %(w/v) is calculated as (mass of solute in grams/volume of solution in mL) x 100. Here, (7.7 g / 400 mL) x 100 = 1.925%, which rounds to 1.9%.

If a Solution Is Prepared by Dissolving 7