1. What is the meaning of Avogadro's number? A. number of grams per one mole of a substance

B. simplest whole-number ratio of a chemical formula

C. whole number ratio that is a multiple of a chemical formula

D. set number of particles in one mole of a substance

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.