Homework Help: science

Posted by sammy on Wednesday, December 15, 2010 at 1:26pm.

How many molecules of stearic acid are present in 2.00 mL of a 0.25 mM solution of stearic acid?

science - TutorCat, Wednesday, December 15, 2010 at 3:16pm
mM=mol/mL

so, take the product of (0.25mol/mL)*(2 mL) to get mol

then, multiply by Avogadro's number (6.022 x 10^23 molecules/ mol)
science - Anonymous, Friday, May 13, 2011 at 6:09pm
3.0E23

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