1.

gaseous mixture of H2 and CO2 gases contains 66 mass % of CO2. The vapour density of theixture is:a) 6.1(b) 5.4(c) 2.7(d) 10.8

Answer»

Let total moles of mixture be 100gMoles of CO2 = 66gThen hydrogen will be = 34gNumber of moles of CO2=66/44=1.5Numbsr of moles if H2=34/2=17Total moles =1.5+17=18.5Formula to be used:Mavg= Total mass/ total moles= 100/18.5=5.40VAPOUR DENSITY= MAvg/2=5.40/2=2.70So, VAPOUR density of mixture is 2.7



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