How many moles of O are needed to combine with 0.223 mole of C to form the following compounds?

Question

CO
CO2

Answer 1

Write the equations and balance them.
C + O2 --> CO2 is one. You do the other one.
Ona (1) mole C combines with 1 mole oxygen to form CO2; therefore, 0.223 mole C will use 0.223 moles oxygen.