Question

In 1909 Fritz Haber reacted Nitrogen with hydrogen to produce 76.3 grams of ammonia. How many grams of hydrogen reacted?

N2(g) + 3H2(g) → 2NH3(g)

Question 5 options:

13.5 grams


4.8 grams


16.9 grams


21.2 grams

Answer 1

13.5 g.

Step-by-step explanation:

76.3 g NH3 contains 4.49 mol NH3. This comes from (3/2)4.49 mol H2 = 6.75 mol H2, or 13.5 g hydrogen.