What is the vapor pressure of a solution in which the mole fraction of the solute is 0. 400 and the vapor pressure of the pure solvent is 100. 0 torr? (assume a single nonvolatile, nonelectrolyte solute).

The recommended daily calcium intake for a 20-year-old is 1,000 milligrams (mg). one cup of milk contains 299 mg of calcium and one cup of juice contains 261 mg of calcium. which of the following inequalities represents the possible number of cups of milk m and cups of juice j a 20-year-old could drink in a day to meet or exceed the recommended daily calcium intake from these drinks alone?

Sat no calculator section question in the picture

Which the following is a common trait in a four year college