(a) Calculate the molarity of a solution that contains 0.0250 mol NH4CL in exactly 500 mL of solution. (b) How many moles of HNO3 are present in 50.0 mL of a 2.50 M solution of nitric acid? (c) How many milliliters of 1.50 M KOH solution are needed to provide 0.275 mol of KOH?
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