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### The following diagram represents a high-temperatu…

03:55
University of New Mexico

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Problem 5

Glycine, an amino acid used by organisms to make proteins, is represented by the following molecular model.
(a) Write its molecular formula.
(b) Determine its molar mass.
(c) Calculate how many moles of glycine are in a $100.0-g$ sample of glycine.
(d) Calculate the percent nitrogen by mass in glycine. [Sections 3.3 and 3.5$]$

a) $\mathrm{NH}_{2} \mathrm{CH}_{2} \mathrm{COOH}$
b) $=75 \mathrm{g} / \mathrm{mol}$
c) 225 $\mathrm{g}$
d) 18.7$\%$

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## Video Transcript

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