Calculate the mass of propylene glycol added to water
Calculate the mass of propylene glycol (C3H8O2) that must be added to 637 g of water to reduce the vapor pressure by 4.74 torr at 40°C. The vapor pressure of pure water at 40°C = 55.3 torr.
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What weight of a can be removed from a soluton that contains 6.00 grams of a in 50.0-mLs of water by a single extraction using 50.0 mLs of ligroin?
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Assume that we have a 100.g sample of this compound. What are the subscripts in the empirical formula of this compound?
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