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Calculate the molarity of a solution made by adding 26.1 mL of concentrated hydrochloric acid (37.3 % by mass, density 1.19 g/mL) to some water in a volumetric flask, then adding water to the mark to make exactly 200 mL of solution. (It is important to add concentrated acids to water, rather than the other way, to minimize splashing and maximize safety.)

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