mole concept

q) 105 mL of pure water (4°C) is saturated with NH3 gas, producing a solution of density 0.9 g/mL. If this solution contains 30% NH3 by weightt , calculate its volume. (Ans. 166.67 mL)

3 Answers

36
rahul ·

wow!! no one here for this qustion...!!

262
Aditya Bhutra ·

let the volume be V ml
weight of soln = d*V = 0.9V

weight of water = (1-30100)*weight of soln = 0.7*0.9V =0.63V

now volume of water = 105ml
weight of water = 1g/cc * 105ml =105g =0.63V

V=166.67 ml

36
rahul ·

thanks.........!!
got it now...!!

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