Answer to Question #56057 in General Chemistry for sue

Question #56057
What is the molarity of a solution containing 12.4 g of KCl in 269 mL of KCl solution? Express your answer with the appropriate units.
Expert's answer
Solution:
molarity = moles of solute / liters of solution
12.4 g of KCl in 269 mL of KCl
moles = grams / molar mass
12.4 g / 74.5 g/mol = 0.166 mol
molarity = 0.166 mol / 0.269 L = 0.6 M

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