39 What is the molarity of a solution that contains 0.500 mole of KNO3 dissolved in 0.500-liter of s

January 2018 NY Regents Chemistry Exam

39 What is the molarity of a solution that contains 0.500 mole of KNO3 dissolved in 0.500-liter of solution?

(1)1.00 M

(2) 2.00 M (3) 0.500 M

(4) 4.00 M

Solution: Table T on the Reference Table provides the formula for molarity

molarity = moles of solute/liters of solution

M= 0.500 mole /0.500 L = 1.00 M

Answer: 1

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