Question

N2 reacts with hydrogen gas according to the following equation:

N2 + 3 H2 → 2 NH3
If 41.93 grams of N2 reacts, how many grams NH3 is produced?

Answer 1

Mass = 51 g

Step-by-step explanation:

Given data:

Mass of nitrogen = 41.93 g

Mass of ammonia formed = ?

Solution:

Chemical equation:

N₂ + 3H₂ → 2NH₃

Number of moles of nitrogen:

Number of moles = mass/molar mass

Number of moles = 41.93 g/ 28 g/mol

Number of moles = 1.5 mol

now we will compare the moles of nitrogen and ammonia.

N₂ : NH₃

1 : 2

1.5 : 2/1×1.5 = 3 mol

Mass of ammonia formed:

Mass = number of moles × molar mass

Mass = 3 mol × 17 g/mol

Mass = 51 g