Question

The balanced equation below represents the reaction between carbon and hydrogen to produce
ethane.
2C(s) + 3H2(g) → C2H6(g) + energy
Determine the number of moles of O2(g) needed to completely react with 8.0 moles of CO(g).


Please help!!!

Answer 1

Answer:

4.0 moles

Explanation:

Based on the given reaction between carbon and hydrogen, the equation of the reaction between O₂ and CO is as follows:

2CO(g) + O₂(g) → 2CO₂(g)    

The number of moles of O₂ needed to completely react with 8.0 moles of CO can be calculated knowing that 2 moles of CO react with 1 mol of O₂:

$n_{O_{2}} = \frac{1 mol O_{2}}{2 moles CO}*8.0 moles CO = 4.0 moles O_{2}$

   

Therefore, the number of moles of O₂ needed is 4.0.

I hope it helps you!