Methane (ch4, 16.05 g/mol) reacts with oxygen to form carbon dioxide (co2, 44.01 g/mol) and water (h2o, 18.02 g/mol). assume that you design a system for converting methane to carbon dioxide and water. to test the efficiency of the system in the laboratory, you burn 5.00 g methane. the actual yield is 6.10 g water. what is your percent yield?

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.