2C2H6 + 7O2 → 4CO2 + 6H2O
what equivalences can you write in terms of moles and why ?
2 mols C2H6 = 7 mols O2 = 4 mols CO2 etc.
To write the equation 2C2H6 + 7O2 → 4CO2 + 6H2O in terms of moles, we can use the concept of stoichiometry. Stoichiometry is the relationship between the amounts of reactants and products in a chemical reaction.
Based on the balanced equation, we can establish the following equivalences in terms of moles:
1 mole of C2H6 is equivalent to:
- 2 moles of CO2 (as seen in the equation, 2 moles of C2H6 produce 4 moles of CO2)
- 3 moles of H2O (as seen in the equation, 2 moles of C2H6 produce 6 moles of H2O)
1 mole of O2 is equivalent to:
- 2.8 moles of CO2 (as seen in the equation, 7 moles of O2 produce 4 moles of CO2)
- 4.2 moles of H2O (as seen in the equation, 7 moles of O2 produce 6 moles of H2O)
To write equivalences in terms of moles, you need to use the balanced chemical equation as a conversion factor. In the given equation, 2 moles of C2H6 react with 7 moles of O2 to produce 4 moles of CO2 and 6 moles of H2O.
Here are the equivalences:
1. 2 moles of C2H6 = 7 moles of O2
This equivalence comes from the coefficient ratio between C2H6 and O2 in the balanced equation. For every 2 moles of C2H6, 7 moles of O2 are consumed.
2. 2 moles of C2H6 = 4 moles of CO2
This equivalence is based on the coefficient ratio between C2H6 and CO2. For every 2 moles of C2H6, 4 moles of CO2 are produced.
3. 2 moles of C2H6 = 6 moles of H2O
This equivalence is derived from the coefficient ratio between C2H6 and H2O. For every 2 moles of C2H6, 6 moles of H2O are formed.
These equivalences allow you to calculate the number of moles of reactants consumed or products formed, given the number of moles of any other substance involved in the reaction.