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Molarity = moles of solute /Liters of solution % by mass = grams of solute /grams of solution x 100 % by volume =volume of solute/ volume of solution x 100 ppm = grams of solute/ grams of solution x 1,000,000. Ex1: What is the molarity of a solution that contains 4.0mol of NaOH in 0.50L of solution? Molarity = moles of solute /Liters of solution ................
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