Answer to Question #158836 in Chemistry for Melissa cotin

Question

3NO₂ + 1H₂O --> 2HNO₃

How many moles of water are needed to react with 8.4 moles of NO₂?

Answer 1

Solution:

The balanced chemical equation:

3NO₂ + H₂O → 2HNO₃ + NO

According to the chemical equation above: n(NO₂)/3 = n(H₂O)

Hence,

n(H₂O) = n(NO₂) / 3 = 8.4 mol / 3 = 2.8 mol

n(H₂O) = 2.8 mol

Answer: 2.8 moles of water (H₂O) are needed to react with 8.4 moles of NO₂