Determine the number of moles in a 1.95 × 10^{− 2} gram sample of the amino acid glycine, CH₂(NH₂)CO₂H.

Name: Determine the number of moles in a 1.95 × 10 − 2 gram sample of the amino acid glycine, CH 2 (NH 2 )CO 2 H.
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Quizplus · Accepted Answer

To find the number of moles, divide the mass of the sample by the molar mass of glycine (C2H5NO2). The molar mass of glycine is approximately 75 g/mol. Thus, $ \frac{1.95 \times 10^{-2} \text{ g}}{75 \text{ g/mol}} = 2.6 \times 10^{-4} $ moles.

Determine the Number of Moles in a 1