A volatile liquid was vaporized in a 250 mL flask placed in a boiling liquid. After cooling to room temperature, the mass of the liquid remaining was 0.950 g. If the temperature of the boiling point was 152 °C, and the barometric pressure was 744 torr, what is the molecular weight of the substance?

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.