Posted by Kathie on Tuesday, May 4, 2010 at 5:16pm.
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!)  DrBob222, Tuesday, May 4, 2010 at 5:36pm
What's the definition?
(volume alcohol/volume solvent)x 100 = 40
Substitute and solve for volume alcohol.

Chemistry  drwls, Tuesday, May 4, 2010 at 5:39pm
Think about what 40% of 620 is, and the URGENCY should go away.
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