When we translate hydrogen gas combines with nitrogen to form ammonia into chemical equation . Why there is 3h2 for hydrogen gas not h2 only.

Open in App

Solution

N₂(g) + 3H₂(g) ↔ 2NH₃(g)

one mole of N2 and 3 moles of H2 gives two moles of NH3(ammonia).
3 H2 is used to balance the chemical equation.
formula of ammonia is NH3, one N2 is used in the reaction so to balance the Nitrogen atom the reaction gives 2 NH3 and finally we have 6 hydrogen atoms ehich should be balanced so 3 H2 is used.

Suggest Corrections

Similar questions

Translate the following statements into chemical equations and then balance them.

(a) Hydrogen gas combines with nitrogen to form ammonia.

(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

Translate the following statements into chemical equations and then balance them.

(A) Hydrogen gas combines with nitrogen to form ammonia

(B) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

(C) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate. [3 MARKS]

N_{2} + 3 H_{2} \to 2 N H_{3}

Join BYJU'S Learning Program