13. Aerobic respiration in all living things produces carbon dioxide and water. The carbon dioxide is released from your body as you exhale. Make some simple assumptions and determine how many carbon atoms are released in one breath. Would you be a billionaire if you were to get paid $0.01/carbon atom per breath? State all of your assumptions and show the calculations to support your estimate. 14. Iron is an important component of human hemoglobin. Find the empirical formula for the most common form of hemoglobin (hemoglobin A) and calculate the %Fe in hemoglobin. a. Suppose the empirical formula you wrote is incorrect by one hydrogen atom. Show that a laboratory measurement might not be able to determine that the formula is incorrect by one hydrogen atom. (Hint: add one hydrogen to the empirical formula and determine the %H.) b. There are four iron atoms (ions) in every hemoglobin molecule. What is the molecular formula for hemoglobin? Did the %Fe change when you write the molecular formula? c. Estimate how many hemoglobin molecules are present in your body and calculate the number of moles of hemoglobin present. (This takes a few steps to estimate...think total volume of blood, %hemoglobin in blood to mL or g of hemoglobin, then grams-to-moles)

14. Iron is an important component of human hemoglobin. Find the empirical formula for the most common form of hemoglobin (hemoglobin A) and calculate the %Fe in hemoglobin. a. Suppose the empirical formula you wrote is incorrect by one hydrogen atom. Show that a laboratory measurement might not be able to determine that the formula is incorrect by one hydrogen atom. (Hint: add one hydrogen to the empirical formula and determine the %H.) b. There are four iron atoms (ions) in every hemoglobin molecule. What is the molecular formula for hemoglobin? Did the %Fe change when you write the molecular formula?