Question

A study of the effects of certain gases on plant growth requires a synthetic atmosphere composed of 1.5 mol percent CO2, 18.0 mol percent O2, and 80.5 mol percent Ar. (a) Calculate the partial pressure of O2 in the mixture if the total pressure of the atmosphere is to be 745 torr; (b) If this atmosphere is to be held in a 120-L space at 295 K, how many moles of O2 are needed?

Answer 1

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