If the human body contains about 50 deciliters of blood, and the blood has about 15 grams of hemoglobin per deciliter, and all of the hemoglobin molecules are saturated with O2, how many grams of O2 will the blood contain?

The blood will contain 750 grams of O2

Explanation:

Volume of blood in the human body = 15 deciliters

Mass of hemoglobin per deciliter of blood = 15 grams

Mass of hemoglobin in 50 deciliters of blood = 50×15 = 750 grams

Since all the hemoglobin molecules are saturated with O2, mass of O2 in the blood will be the same as mass of hemoglobin molecules in the blood.

Therefore, mass of O2 in the blood is 750 grams

750 g of O2 in the blood.

Explanation:

Volume of blood in the human body, V = 15 deciliters

Density of hemoglobin, D = 15 grams/deciliter

Mass of hemoglobin = Density * volume

= 50 * 15

= 750 g.

Since all the hemoglobin molecules are saturated with O2, mass of O2 in the blood = mass of hemoglobin molecules in the blood. Mass of O2 in the blood is 750 g.