When a solution is made from 1.0 g of KI and 0.090 L of water, what is its molarity?
A)0.001 M
B)0.09 M
C)0.07 M
D)11.1 M

Name: When a solution is made from 1.0 g of KI and 0.090 L of water, what is its molarity? A)0.001 M B)0.09 M C)0.07 M D)11.1 M
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Quizplus · Accepted Answer

To find molarity, divide the moles of solute by the liters of solution. KI has a molar mass of about 166 g/mol, so 1.0 g of KI is 1.0/166 = 0.00602 moles. The solution volume is 0.090 L, so the molarity is 0.00602/0.090 = 0.067 M, approximately 0.07 M.

When a Solution Is Made from 1