Glucose is used as an energy source by the human body. The overall reaction in the body is described by the equation C6H12O6(aq) + 6O2(g) = 6CO2(g) + 6H2O(l). How many grams of oxygen are required to convert 28.0 g of glucose to CO2 and H2O?
28.1 grams to three significant figures.
180 grams per mole.
To find the number of moles divide 28.0 grams by 180. grams
It requires 6 moles of Oxygen to "burn" 1 mole of glucose. so to find the number of moles of Oxygen required multiply by 6
Oxygen has a molecular mass of 32
To find the number of grams of Oxygen multiple moles by grams per mole.