The concentration of a gas is related to its pressure by the ideal gas law: where n is the number of moles, V is volume (L), P is pressure (bar), and T is temperature (K). (a) The maximum pressure of ozone in the Antarctic stratosphere in Figure 1-1 is 19 mPa. Convert this pressure into bars. (b) Find the molar concentration of ozone in part (a) if the temperature is 70 C.
Chapter 11: Solutions and Colloids (cont.) I. Colligative Properties A. Osmosis 1. Semipermeable Membranes- material that only allows select molecules or ions to pass through of certain size, shape, polarity, charge, or other factor. 2. Consider: a membrane that only allows solvent molecules to permeate and not solute. a) [can be used to separate a sample of pure solvent from a solution] 3. U-tube: Solvent molecules diffuse across membrane in both directions. The concentration is higher in the pure sample. a) Result: A net transfer of solvent molecules from the pure solvent to
