Answer to Question #314086 in General Chemistry for sof

Question

How many moles of O₂ are needed to react with 2.83 moles 

Answer 1

n(H₂O) = 2.83 moles.

Solution:

The equation of a chemical reaction:

4NO₂(g) + 6H₂O(g) → 7O₂(g) + 4NH₃(g)

According to the reaction equation: n(NO₂)/4 = n(H₂O)/6.

n(NO₂) = 4*n(H₂O)/6;

n(NO₂) = (4 * 2.83 moles) / 6 = 1.8867 moles = 1.89 moles

n(NO₂) = 1.89 moles.

Answer: 1.89 moles of nitrogen dioxide (NO₂).