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01-06-2023
Chemistry

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The vapor pressure of 1,1-dichloroethane, CH3CHCl2, is 228 Torr at 25 8C; at the same temperature, that of 1,1-dichlorotetrafluoroethane, CF3CCl2F, is 79 Torr. What mass of 1,1-dichloroethane must be mixed with 100.0 g of 1,1-dichlorotetrafluoroethane to give a solution with vapor pressure 157 Torr at 25 8C

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