chemistry problem Please help!?

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How many grams of C2H5OH must be added to 83.2 g of water to make a 2.53 m aqueous solution of C2H5OH?

I can't figure out what I'm doing wrong...

2007-09-19 10:08:25 · 1 answers · asked by lub1210 1 in Science & Mathematics ➔ Chemistry

Atomic weights: C=12 H=1 O=16 C2H5OH=46

Let C2H5OH be called EtOH

83.2gH2O x 1kgH2O/1000gH2O x 2.53molEtOH/1kgH2O x 46gEtOH/1molEtOH = 9.68g C2H5OH

2007-09-19 10:20:29 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋