An aqueous solution is 1.00% by mass and has a density of 1.071 at 25°C. The observed osmotic pressure of this solution is 7.83 atm at 25°C. The molal freezing-point depression constant for water is 1.86°C kg/mol.
What fraction of the moles of NaCl in this solution exist as ion pairs?
Calculate the freezing point that would be observed for this solution

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon