2 C8H18 + 25 O2 → 16 CO2 + 18 H2O. WHAT IS THE MOLE-TO-MOLE RATIO BETWEEN OXYGEN GAS AND WATER?
The equation ALWAYS tells you.
25 mols O2 = 18 mols H2O or 25:18
To determine the mole-to-mole ratio between oxygen gas (O2) and water (H2O) in the given balanced chemical equation, we need to examine the coefficients in front of the compounds.
In the balanced equation:
2 C8H18 + 25 O2 → 16 CO2 + 18 H2O
We can see that the coefficient in front of O2 is 25, and the coefficient in front of H2O is 18.
The mole-to-mole ratio between O2 and H2O can be obtained by comparing these coefficients. Since there are 25 moles of O2 and 18 moles of H2O, the mole-to-mole ratio is:
25 moles O2 : 18 moles H2O
So, the mole-to-mole ratio between oxygen gas and water is 25:18.