Using a balanced chemical equation, determine the limiting reagent and product yiel...
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Problem
Using a balanced chemical equation, determine the limiting reagent and product yield when 2 moles of NH3 react with 3 moles of CO2.
Step-by-step solution
The balanced equation is $2NH_3 + CO_2 \rightarrow (NH_2)_2CO + H_2O$. With 2 moles of $NH_3$ and 3 moles of $CO_2$, $NH_3$ is the limiting reagent as it requires 1 mole of $CO_2$ for every 2 moles of $NH_3$. Therefore, 2 moles of $NH_3$ will consume 1 mole of $CO_2$, leaving 2 moles of $CO_2$ in excess.
Answer
Experimentally NH3 is the limiting reagent