A.) Consider the combustion of hydrogen to make water. If you start with 2.47 grams of H2 and 12.02 grams of O2, what is the limiting reactant and the theoretical yield of water? b.) The balanced chemical equations below represents the burning of carbon monoxide in oxygen to form carbon dioxide. If you have 1.000 g each of CO and O2, determine the limiting reactant and the theoretical yield in grams.

2CO(g) + O2(g) → 2CO2(g)

Here we have to get the mass of the iron (Fe) produces in the reaction between ferric oxide (Fe₂O₃) and carbon monooxide (CO) to produce carbon dioxide and iron.

The amount of Fe produced in the reaction is B. 99.7g.

The balanced form of the reaction given is: Fe₂O₃ (s) + 3CO = 2Fe + 3CO₂.

Now as per the reaction 3 moles of CO produce 2 moles of Fe.

The molar mass of CO and Fe are 28.01g/mol and 55.845g/mol.

Thus (3×28.01) 84.03g of CO produces 111.69g of Fe.

Hence, 75.0g of CO produces ×75.0 = 99.687g of Fe or 99.7g of Fe.

A. If in the reaction 49.8g Fe is produced in the reaction then ×49.8 = 37.467g of CO should react. Thus the option is wrong.

C. To produce 224g of Fe ×224 = 168.526g of CO will consumed. Thus it is wrong statement.

D. To generate 299g of Fe ×299 = 224.952g of CO will consumed. Thus it is wrong statement.