how many grams of oxygen are required to burn completely 570g of octane?

Answer 1

Write and balance the equation.
2C8H18 + 25O2 ==> 16CO2 + 18H2O

convert 570 gh C8H18 to mols. mol = g/molar mass octane.

Using the coefficients in the balanced equation convert mols octane to mols O2.

Now convert mols O2 to grams. g = mols x molar mass.

Answer 2

52 g

Answer 3

What is this so bad answer