Moderate

105 ml of pure water at 4°C is saturated with NH3(g) producing a solution of density 0.9 gm/ml. If this solution contains 30% of NH3 by mass, the total volume of solution is:

Correct answer: C. 166.67 ml

A. 250 ml
B. 125 ml
C. 166.67 ml
D. 111.11 ml

Explanation

Following is the solution to this question:

Last updated 1 September 2026

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Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.

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105 ml of pure water at 4°C is saturated with NH3(g) producing a solution of density 0.9 gm/ml. If this solution contains 30% of NH3 by mass, the total volume of solution is:

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