Question

2.8 g of N$_{2(g)}$ and 0.8 g of H$_{2(g)}$ are allowed to react completely. What is the mass of NH$_{3(g)}$ formed? (molar mass of N$_{2(g)}$=28, H$_{2(g)}$=2 and NH$_{3(g)}$=17)}

• A. 3.6 g
• B. 3.4 g
• C. 3.2 g
• D. 3.0 g

Hint:

To find the limiting reagent quickly, divide the moles of each reactant by its stoichiometric coefficient. The one with the smaller value is limiting.
For \(N_2: 0.1/1 = 0.1\); For \(H_2: 0.4/3 = 0.133\). Thus, \(N_2\) is limiting.

Answer 1

The Correct Option is B