Chemistry Review

Question

Suppose that 14.0 g of nitrogen gas reacts with 6.0 grams of hydrogen gas. What mass of ammonia would you produce? Please include steps

Answer 1

The reaction involves nitrogen gas and hydrogen gas.

N₂ + H₂ → NH₃

N₂ + H₂ → 2NH₃ (balance nitrogen)

N₂ + 3H₂ → 2NH₃ (balance hydrogen to balance the equation)

Thus 1 moles of nitrogen gas produces 2 moles of ammonia with excess hydrogen.

1 mole of nitrogen has a mass of 2 (14) = 28g so 14g of nitrogen = 14/28 = 0.5 moles of nitrogen

From the equation 0.5 moles of nitrogen in excess hydrogen produces 1 mole of ammonia with a mass of (14+3) = 17g of ammonia.