Rate Laws (Section)
The following data were collected for the rate of disappearance of NO in the reaction 2 NO(g) + O2(g)—>2 NO2(g):
(a) What is the rate law for the reaction? (b) What are the units of the rate constant? (c) What is the average value of the rate constant calculated from the three data sets? (d) What is the rate of disappearance of NO when [NO] = 0.0750 M and [O2] = 0.0100 M ? (e) What is the rate of disappearance of O2 at the concentrations given in part (d)?
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
