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Chemistry(URGENT, PLEASE HELP!)

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the volume of alcohol present in 620 mL of a 40% (v/v) solution of alcohol is ______?
A. 372 mL
B. 40 mL
C. 248 mL
D. 580 mL

  • Chemistry(URGENT, PLEASE HELP!) -

    What's the definition?
    (volume alcohol/volume solvent)x 100 = 40
    Substitute and solve for volume alcohol.

  • Chemistry -

    Think about what 40% of 620 is, and the URGENCY should go away.

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