Question #197249

calculate the percentage of nitrogen content by mass in urea, CO(NH2)2.

Expert's answer

percentage of nitrogen content by mass in urea is given by ="\\dfrac{\\ mass\\ of \\ nitrogen}{molar\\ mass \\ of\\ urea}\\times 100"

Molecular formula of urea is given by = "NH_{2}-CO-NH_{2}"

Molar mass of urea = (14+1"\\times 2)\\times 2 +12 + 16=60 \\ g\/mol"

Mass of nitrogen in urea ="14\\ g\/mol \\times 2 =28\\ g\/mol"

% of nitrogen content by mass in urea = "\\dfrac{28\\ g\/mol}{60\\ g\/mol }\\times 100" =46.6%

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