# science

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

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1. 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)

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2. 3.0E23

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