Calculate the molarity of a solution formed by dissolving 5.0 g of NaCl (58.44 g/mol) into 0.250 L of solution.

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Multiple Choice

Calculate the molarity of a solution formed by dissolving 5.0 g of NaCl (58.44 g/mol) into 0.250 L of solution.

Explanation:
Molarity is moles of solute per liter of solution. First convert the mass of NaCl to moles: 5.0 g ÷ 58.44 g/mol ≈ 0.0856 mol. The volume is 0.250 L, so molarity = 0.0856 mol ÷ 0.250 L ≈ 0.342 M. Therefore, the solution’s molarity is about 0.342 M.

Molarity is moles of solute per liter of solution. First convert the mass of NaCl to moles: 5.0 g ÷ 58.44 g/mol ≈ 0.0856 mol. The volume is 0.250 L, so molarity = 0.0856 mol ÷ 0.250 L ≈ 0.342 M. Therefore, the solution’s molarity is about 0.342 M.

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