According to the chemical equation
2C2H6(g) + 7O2(g) --->
4CO2(s) + 6H2O(g)
d) how many mol of dioxygen are required to produce with 5.67
x 10-3 mol CO2?
The approach is nearly identical to that used in part a). We
must use the stoichiometric ratio between carbon dioxide and
dioxygen to answer the question. This ratio is obtained from the
balanced chemical equation. According to the balanced chemical
equation four mol of carbon dioxide, CO2, are formed
when seven mol of dioxygen react. Carbon dioxide and water always
combine in this ratio according to this equation. We can use this
relationship as a unit conversion factor to convert between mol
of carbon dioxide and mol of dioxygen.