# How many grams of nitrogen dioxide must react with water to produce 5.00*10^22 molecules of nitrogen monoxide?

Dec 6, 2016

11.46 grams

#### Explanation:

Consider the balanced chemical equation, which we need to obtain the molar ratios:

$3 N {O}_{2} + {H}_{2} O \to N O + 2 H N {O}_{3}$

I see you would like to know the grams $N {O}_{2}$ required to react with your amount of atoms $N O$.

Let's use the molar ratios to calculate the amount of nitrogen dioxide required.

Consider the graphic below: