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

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:

Which one of the following substances would be the most soluble in ccl4? na2so4 h2o ch3ch2ch2ch2oh c4h10 hi