Use the balanced equation for the incomplete combustion of C8H18 to answer the following questions.

2CgH18(g)+1702(g)-+16CO(g)+18H20(g)

Be sure each of your answer entries has the correct number of significant figures.

Part 1 of 3

x10

How many moles of O2 are needed to react completely with 8.4 mol of C8H18?

mol O2

The balanced equation shows that 1 mol of C8H18 requires 17 mol of O2 to react completely. Therefore, to find out how many moles of O2 are needed to react with 8.4 mol of C8H18, we can set up a proportion:

8.4 mol C8H18 x (17 mol O2 / 1 mol C8H18) = 142.8 mol O2

Therefore, 8.4 mol of C8H18 requires 142.8 mol of O2 to react completely.