What is the stoichiometric coefficient for oxygen when the following equation is balanced using the lowest whole-number coefficients?
_____ C₂H₆O(l) + _____ O₂(g) → _____ CO₂(g) + _____ H₂O(l)

Question

Quizplus · Accepted Answer

There are no oxygen atoms on the left side of the equation, so the stoichiometric coefficient for oxygen gas (O2) must be 0. On the right side of the equation, there are 6 oxygen atoms in CO and 6 oxygen atoms in H2SO4, so the stoichiometric coefficient for oxygen gas (O2) must be 6/2 = 3. Therefore, the balanced equation is:

CS2(l) + 3O2(g) → CO2(g) + 2H2SO4(l)

What Is the Stoichiometric Coefficient for Oxygen When the Following