Consider the reaction. 2 cap c sub 6 cap h sub 14 plus 19 cap o sub 2 rightarrow 12 CO sub 2 plus 14 cap h sub 2 cap o How many moles of hexane open paren cap c sub 6 cap h sub 14 close paren must burn to form 18 point 4 mol of carbon dioxide?

The balanced equation shows that 2 mol of hexane produce 12 mol of carbon dioxide, so each mole of hexane produces 6 mol of carbon dioxide. Divide the desired amount of carbon dioxide by 6: 18.4 ÷ 6 = 3.07 mol of hexane. The correct choice is 3.07 mol.

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