Reference no: EM132582585

1)The atmosphere contains 78% N2(g), 21% O2(g), and traces of other gases. These gases react at high temperature to form nitrogen monoxide, an important pollutant.

N2(g) + O2(g)↔2NO(g)

For this reaction at a certain temperature, Kc = 3.8 x 10-5. If the initial concentration of N2(g) is 0.78 mol/L, and O2(g) is 0.21 mol/L, what will be the equilibrium concentration of NO(g) at this temperature?

Express the answer in the a.b x10-c format. abc

2)At a certain temperature, Kc = 6.0 x 10-4 for the reaction between sulfur trioxide gas and gaseous hydrogen fluoride to produce gaseous sulfur hexafluoride and water vapour.

SO3(g) + 6HF(g)↔SF6(g) + 3H2O(g)

Calculate the equilibrium concentration of sulfur hexafluoride that would result if 1.8 mol of sulfur trioxide was mixed with 5.6 mol of hydrogen fluoride in a 2.1 L container.