Question

If a sample of 2.00 moles of NO gas was reacted with excess

oxygen, how many moles of nitrogen dioxide gas would be
produced?

Answer 1

2 moles

Explanation:

first you have to balance the equation:

2NO + O2⇒2NO2

then set up your mole to mole ratio

2 mol NO2/2 mol NO

multiply by the given 2.00 mol NO gas

and you should get 2 mol NO2