Glucose C6H12O6 is used as an energy source by the human body. The overall reaction in the body is described by the equation.

Question

C6H12O6 (aq) + 6O2(g) = 6 CO2 (g) + 6H2O (I)

calculate the number of grams of oxygen required to convert to 38 g of glucose to CO2 and H2O

Answer 1

C₆H₁₂O₆ (aq) + 6O2(g) = 6 CO2 (g) + 6H2O (I) ... balanced equation

Using dimensional analysis...

38 g C₆H₁₂O₆ x 1 mol C₆H₁₂O₆ / 180 g x 6 mol O₂ / mol C₆H₁₂O₆ x 32 g O₂ / mol O₂ = 40.5 g O₂ needed