{ 25. Calcium carbonate decomposed upon heating to give calcium oxide and carbon dioxide. A sample of
calcium carbonate is decomposed and the carbon dioxide is collected in a 250.0-ml flask. After the
decomposition is completed, the gas has a pressure of 1.3 atm at a temperature of 31°C. How many
moles of CO2 gas were generated? (0.013 mol)
26. Compute the relative rate of diffusion of argon to helium. (3.16)

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: