Question

89.6 litres of a mixture of nitrogen and hydrogen measured at STP were passed over a catalyst. After the reaction, the volume of the mixture reduced to 67.2 litres. Ammonia thus formed was dissolved in 101 ml of an aqueous ammonia solution of density of 0.85 g//ml containing 12% by mass of NH4OH. Determine the percent weight strength of the final solution.

Answer 1

57,120g is the percent weight strength(w/v) of the final solution.

Explanation:

Given that,

$N_{2} + 3H_{2}$  →  $2NH_{3}$

Volume of final solution = 67.2 litres

ρ = 0.85 g/ml

As we know,

ρ = mass/volume

Mass = ρ * V

= 0.85 * 1000 * 67.2

= 57,120 g

Thus, 57,120g is the percent weight strength of the solution.

Learn more: Ammonia Solution

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