How many moles??????

Question

Determine how many moles of O2 are required to react completely with 4.6 moles of C6H14??

Thanks a lot!!!! :)

Answer 1

First, balance your equation:

2C6H14 + 19O2 -> 14H2O + 12CO2

from the equation, you know that you need 19 moles of O2 for every 2 moles of C6H14.

If you have 4.6 moles of hexane, you need 43.7 moles of O2

Answer 2

You need a balanced equation to answer this:

2C6H14 + 19O2 ---> 14H2O + 12CO2

You need 19 moles oxygen for every 2 moles of hexane you burn:

4.6 x 19/2 = 43.7