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3 November, 02:48

A 250-gram solution of alcohol contains 180 mL of water. What is the mass percent of alcohol? (Remember water's density.)

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  1. 3 November, 03:00
    0
    1 mL of water is 1 gram.

    So, the mass percent of alcohol is the rest: (250-180) / 250 = 28%
  2. 3 November, 03:17
    0
    1 mL of water is 1 gram.

    the mass percent of alcohol: (250-180) / 250 = 28%
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