MathDB
2010 USNCO Local #8: Highest Percentage by Mass

Source:

November 21, 2012

Problem Statement

Which compound contains the highest percentage of nitrogen by mass?
<spanclass=′latex−bold′>(A)</span>NH2OH(M=33.0)<spanclass=′latex−bold′>(B)</span>NH4NO2(M=64.1) <span class='latex-bold'>(A)</span> \text{NH}_2\text{OH} (M=33.0) \qquad<span class='latex-bold'>(B)</span>\text{NH}_4\text{NO}_2 (M=64.1)\qquad <spanclass=′latex−bold′>(C)</span>N2O3(M=76.0)<spanclass=′latex−bold′>(D)</span>NH4NH2CO2(M=78.1)<span class='latex-bold'>(C)</span>\text{N}_2\text{O}_3 (M=76.0)\qquad<span class='latex-bold'>(D)</span>\text{NH}_4\text{NH}_2\text{CO}_2 (M=78.1)\qquad
Back to ProblemsView on AoPS