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19.50 ml. of a mixture of NH3 and H2 was completely decomposed by sparking into nitrogen and hydrogen. 40 ml of oxygen was then added and the mixture was sparked again. After cooling to the room temperature the mixture was shaken with alkaline pyrogallol and a contraction of 6 ml. was observed. Calculate the % of NH3 in the original mixture. (Assuming that nitrogen does not react with oxygen.) 19.50 ml. of a mixture of NH3 and H2 was completely decomposed by sparking into nitrogen and hydrogen. 40 ml of oxygen was then added and the mixture was sparked again. After cooling to the room temperature the mixture was shaken with alkaline pyrogallol and a contraction of 6 ml. was observed. Calculate the % of NH3 in the original mixture. (Assuming that nitrogen does not react with oxygen.)
nh3 ---1/2 n2 + 3/2h2let the volume of nh3 be avolume of n2=a/2 and h2=3/2atotal volume of h2=3/2a +50 -a=50+a/2h2+ 1/2o2-----h20volume of o2 absorbed=6=40-(50+a/2).5a=36percentage of nh3=36/50*100=72%thanks and regardssunil kraskIITian faculty
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