MathDB
2008 USNCO Local #11: Moles of X, Y and Z

Source:

December 17, 2012
percent

Problem Statement

For the reaction: 2X+3Y3Z2X + 3Y \rightarrow 3Z, the combination of 2.002.00 moles of XX with 2.002.00 moles of YY produces 1.751.75 moles of ZZ. What is the percent yield of this reaction? <spanclass=latexbold>(A)</span>43.8%<spanclass=latexbold>(B)</span>58.3%<spanclass=latexbold>(C)</span>66.7%<spanclass=latexbold>(D)</span>87.5%<span class='latex-bold'>(A)</span>\hspace{.05in}43.8\%\qquad<span class='latex-bold'>(B)</span>\hspace{.05in}58.3\%\qquad<span class='latex-bold'>(C)</span>\hspace{.05in}66.7\%\qquad<span class='latex-bold'>(D)</span>\hspace{.05in}87.5\%\qquad