How many moles are in a solution if I have 2.21 M of NaCl in 1.14 L? A.1.12 mol

B.2.52 mol

C.4.15 mol

D.7.89 mol

The correct answer is B.2.52 mol

Explanation:

The molarity of a solution (M) expresses the number of moles of solute there is in 1 liter of solution. If we have the molarity (M) and the volume in liters (L), we simply multiply M x V to obtain the moles, as follows:

M = 2.21 = 2.21 moles/L

V = 1.14 L

M x V = 2.21 moles/L x 1.14 L = 2.5194 moles ≅ 2.52 moles

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