Question

a mixture of NO, CO2, and O2 gases has a total pressure of 2.5x10^3 torr. if the partial pressure of NO is 800 torr and CO2 is 600 torr, what is the partial pressure of O2?

Dr. Bob. Please help
You need to read about Dalton's Law. Dalton said that each gas of a mixture exerts its pressure independent of the others. Said another way,
Ptotal = Pagas + Pbgas + Pcgas + Pdgas.......

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