A7.85 g sample of a compound with the empirical formula c₅h₄ is dissolved in 301 g of benzene. the freezing point of the solution is 1.05 °c below that of the pure benzene. what are the molar mass and molecular formula of this compound? kf for benzene is -5.12 °c/m.

m = molality

As you move from right to left on the periodic table the atomic radius fill in the blank

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice