Calculate the weight of ammonia gas.
a) Required for reacting with sulphuric acid to give 78g of fertilizer ammonium sulphate.
b) Obtained when 32.6g of ammonium chloride reacts with calcium hydroxide during the laboratory preparation of ammonia[2NH₄Cl+Ca(OH)₂gives CaCl₂+2H₂O+2NH₃].

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Solution

1. The reaction is as follows:

H₂SO₄ + 2 NH₄OH $\to$ (NH₄)₂SO₄ + 2 H₂O

2. 2 moles of Ammonia produces reacts with 1 mole of Ammonium Sulphate.

Number of moles in 78g of Ammonium Sulphate = $\frac{78}{132.14} = 0.590 m o l e s$

Moles of Ammonia required = 2 $\times$ 0.590 = 1.18 moles

3. Mass of Ammonia = 1.18 $\times$ 17 = 20.06 g.

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Similar questions

Q. How many grams of ammonia is obtained when 32.6 g of ammonium chloride reacts with calcium hydroxide during the laboratory preparation of ammonia?

[2 N H_{4} C l + C a (O H)_{2} \to C a C l_{2} + 2 H_{2} O + 2 N H_{3}]

[N=14, H=1, O=16, S=32, Cl=35.5]

Q. Ammonia reacts with sulphuric acid to give the fertilizer ammonium sulphate. Calculate the volume of ammonia [at STP] used to form

59 g

of ammonium sulphate.

[N = 14, H = 1, S = 32, O = 16]

Ammonia reacts with sulphuric acid to give the fertilizer ammonium sulphate.Calculate the volume of ammonia at Standard Temperature Pressure to form 30g of ammonium sulpahte.

(a) Write the equation for:
(i) the preparation of hydrogen chloride from sodium chloride and sulphuric acid. State whether the sulphuric acid should be concentrated or dilute.
(ii) the preparation of ammonia from ammonium chloride and calcium hydroxide.
(iii) the reaction of hydrogen chloride with ammonia.

Q. Write the equation for:
(i) The preparation of ammonia from ammonium chloride and calcium hydroxide.
(ii) The reaction of hydrogen chloride with ammonia.

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Calculate the weight of ammonia gas. a) Required for reacting with sulphuric acid to give 78g of fertilizer ammonium sulphate. b) Obtained when 32.6g of ammonium chloride reacts with calcium hydroxide during the laboratory preparation of ammonia[2NH4Cl+Ca(OH)2gives CaCl​2+2H2O+2NH3].

Calculate the weight of ammonia gas.
a) Required for reacting with sulphuric acid to give 78g of fertilizer ammonium sulphate.
b) Obtained when 32.6g of ammonium chloride reacts with calcium hydroxide during the laboratory preparation of ammonia[2NH₄Cl+Ca(OH)₂gives CaCl₂+2H₂O+2NH₃].