According to the chemical equation

2C2H6(g) + 7O2(g) ---> 4CO2(s) + 6H2O(g)

b) how many mol of carbon dioxide will form by the complete combustion of 0.410 mol of C2H6?


The approach is identical to that used in part a). We must use the stoichiometric ratio between carbon dioxide and ethane to answer the question. This ratio is obtained from the balanced chemical equation. According to the balanced chemical equation four mol of carbon dioxide are formed when two mol of ethane, C2H6, react. Carbon dioxide and ethane always combine in this ratio according to this equation. We can use this relationship as a unit conversion factor to convert between mol of ethane and mol of carbon dioxide.