Question

How many moles of oxygen are needed to burn 1.33 moles of methyl alcohol (CH3OH)?
2CH3OH + 3O2 2CO2 + 4H2O

-0.877 moles

-0.997 moles

-1.330 moles

-1.995 moles

-2.660 moles

Answer 1

@amistre64

Answer 2

Those arent negatives

Answer 3

They are like ABCD.

Answer 4

Methanol reacts with oxygen in a 2:3 ratio. Set it up like this:\[\color{green}{\dfrac{2}{3} = \dfrac{1.33}{x}}\] Solve for x.

Answer 5

@ghuczek you can cross multiply and devide correct?

Answer 6

use the same method as your last problem, but now the numbers aren't so nice and round anymore