The vapor pressure of pure water at 55°C is 118 mm Hg. The vapor pressure of ethanol at 55°C is 144 mm Hg. What is the total vapor pressure above a mixture of 92.0 g of ethanol (CH3CH2OH, molar mass = 46.0 g/mol) and 186 g of water?

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?

Enzymes affect the reactions in living cells by changing the

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.