Question

Given the reaction: 4Na + O2 → 2Na2O How many moles of oxygen are completely consumed in the production of 1.00 mole of Na2O?

Answer 1

To produce 1.00 mole of Na2O, 0.5 moles of O2 are consumed according to the stoichiometry of the balanced equation 4Na + O2 → 2Na2O.

Step-by-step explanation:

To determine how many moles of oxygen are completely consumed in the production of 1.00 mole of Na2O, we look at the stoichiometry of the balanced chemical equation:
4Na + O2 → 2Na2O.

From the equation, it can be seen that 1 mole of O2 is required to produce 2 moles of Na2O. Therefore, to produce 1 mole of Na2O, only 0.5 moles of O2 would be consumed:

1 mole O2 / 2 moles Na2O = 0.5 moles O2 / 1 mole Na2O

This means that half a mole of oxygen is needed for the production of one mole of sodium oxide (Na2O).

Answer 2

The answer is 0.5 moles because if 1 moles of o2 is consumed to produce 2 moles of Na2O, then 0.5 moles of o2 will be consumed to produce 1 mole of Na2O.