(Answered) At 25oc substance a has a vapour pressure of 20cm hg and a

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At 25oC, substance A has a vapour pressure of 20cm Hg and a mole fraction of 0.2 and substance B has a vapour pressure of 110cm Hg. When combined they form an ideal mixture (one that obeys Raolt's Law). What will be the total vapour pressure of a mixture of A and B?

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