Problem: Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation:3NO2(g) + H2O(l) → 2HNO3(l) + NO(g)Suppose that 4.4 mol NO2 and 0.80 mol H2O combine and react completely. Which reactant is in excess?

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Determine which is the limiting reactant

4.4 mol NO2 1 mol NO3 mol NO2=1.467 mol NO0.80 mol H2O 1 mol NO1 mol H2O=0.80 mol NO

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Problem Details

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation:

3NO2(g) + H2O(l) → 2HNO3(l) + NO(g)

Suppose that 4.4 mol NO2 and 0.80 mol H2O combine and react completely. Which reactant is in excess?

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