A student weighs out a 13.7 g sample of Cr(NO3)3, transfers it to a 300 mL volumetric flask, adds enough water to dissolve it and then adds water to the 300 mL tic mark.

What is the molarity of chromium(III) nitrate in the resulting solution?

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  1. moles Cr(NO3)3 = grams/molar mass
    M = moles/L soln.

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