The equation for the complete combustion of ethanol is

C2H5OH1+3O2 ---- 2CO2+3H2O
5.0 mole of ethanol is completely burnt in excess oxygen
Calculate the
Moles of C2O produced
Moles of steam produced

1 answer

To determine the moles of \(CO_2\) and \(H_2O\) produced from the complete combustion of ethanol (\(C_2H_5OH\)), we can use the balanced chemical equation:

\[ C_2H_5OH + 3O_2 \rightarrow 2CO_2 + 3H_2O \]

From the equation, we can see the following stoichiometric ratios:

  • 1 mole of ethanol produces 2 moles of carbon dioxide (\(CO_2\))
  • 1 mole of ethanol produces 3 moles of water (\(H_2O\))

Given that we have 5.0 moles of ethanol, we can calculate the moles of \(CO_2\) and \(H_2O\) produced as follows:

Moles of \(CO_2\) Produced

From the equation: \[ 1 \text{ mole of } C_2H_5OH \rightarrow 2 \text{ moles of } CO_2 \]

Thus, for 5.0 moles of ethanol: \[ 5.0 \text{ moles of } C_2H_5OH \rightarrow 5.0 \times 2 = 10.0 \text{ moles of } CO_2 \]

Moles of \(H_2O\) Produced

From the equation: \[ 1 \text{ mole of } C_2H_5OH \rightarrow 3 \text{ moles of } H_2O \]

Thus, for 5.0 moles of ethanol: \[ 5.0 \text{ moles of } C_2H_5OH \rightarrow 5.0 \times 3 = 15.0 \text{ moles of } H_2O \]

Summary

  • Moles of \(CO_2\) produced: 10.0 moles
  • Moles of \(H_2O\) produced: 15.0 moles