You are asked to make 10 moles of iron (Fe) from iron oxide (fe203) and excess carbon monoxide (CO).
Fe203 (s) + 3CO (g) -- 2Fe(I) + 3CO2(g)
How many moles of iron oxide must you use?
5 moles
2 moles
10 moles
3 moles

hloride, what is the mass of calcium in

explanation:

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :