Question

Calculate the number of moles of N2 produced from 0.080 moles of NH3 by the following reaction. 4 NH3 + 6 NO — 5 N2 + 6 H20

Answer 1

Answer: 0.10 moles of N2 are produced.

Explanation: You can find the number of moles of N2 produced from 0.080 moles of NH3 by doing mole ratios.

Since 5 moles of N2 is being produced for 4 moles of NH3, you can do

(0.080 moles of NH3 x 5 moles of N2) and then divide the number you get by 4 moles of NH3.

(0.080 x 5 moles)/4 = 0.10

Since 0.080 has 2 significant figures, your final answer also needs to have 2 sig figs.