Answer to Question #291096 in General Chemistry for Mimi

Question #291096

72cm³ of a mixture of Nitrogen and Nitrogen oxide were passed over heated copper until all the nitrogen oxide had been reduced to nitrogen. The volume of the resulting gas was 60cm³, calculate the volume of nitrogen oxide in the original mixture.

1
Expert's answer
2022-01-28T06:31:03-0500

2NO+2Cu== 2CuO+ N2


Let V== Volume of Nitrogen

Volume of NO =72V=72-V

Volume of N2=60VN_2=60-V


NO:N2 =2:1=2:1


72V=2(60V)72-V=2(60-V)

V=48V=48



Volume of NO =7248=24cm3=72-48=24cm^3


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