A 38.0-g sample of NaOH is dissolved in water,and the solution is diluted to give a final volume of 1.70 L.The molarity of the final solution is

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Quizplus · Accepted Answer

The molarity (M) of a solution is calculated using the formula M = moles of solute / liters of solution. The molar mass of NaOH is approximately 40 g/mol. Thus, 38.0 g of NaOH is equivalent to 38.0 g / 40 g/mol = 0.95 moles. The volume of the solution is 1.70 L. Therefore, the molarity is 0.95 moles / 1.70 L = 0.558 M.

A 380-G Sample of NaOH Is Dissolved in Water,and the Solution