6 and 7

6. CO2w+O2w2CO3w 4.60 moles of CO2 and 5.70 moles O2 are placed in a 7.50L container at 200C and allowed to reach equilibrium. If the equilibrium concentration of CO2 is 0.12M, calculate the Keq of this reaction. CO2= O2= CO= 7. 0.845mol of SiO2 are placed in a 7.10L container and are allowed to reach equilibrium at 22C. If 0.01210 moles of SiO2 are present at equilibrium, calculate the equilibrium constant, Keq. Si2O5w+SiOw3SiO2(w)