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CD 8 1 point Agas mixture contains 6.05 mol He and 0.135 mol O2. What is the mole fraction of He (che)? O 0.978 O

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CD 8 1 point Agas mixture contains 6.05 mol He and 0.135 mol O2. What is the mole fraction of He (che)? O 0.978 O 0.746 0.159 0.0217 0.122 1 point If the total pressure of the mixture described in question 8 is 12.099 atm, what is the partial pressure of Oz? 0.178 atm 0.264 atm 0.169 atm 6.21 atm 11.8 atm

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