90.8 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 68.1 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 NH_(4)OH. Determine the percent weight strength of the final solution. [Give answer exculding decimal places]

90.8 litres of a mixture of nitrogen and hydrogen measured at STP were

1.	90.8 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 68.1 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 NH_(4)OH. Determine the percent weight strength of the final solution. [Give answer exculding decimal places]
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