The hemoglobin content of blood is about 15.4 g/100ml blood. the molar mass of hemoglobin is about 64500 g/mol, and there are four iron (fe) atoms in a hemoglobin molecule. you may want to reference ( page ) section 3.1 while completing this problem. part a approximately how many fe atoms are present in the 6 l of blood in a typical adult?

3.45 x 10^22 atoms of Fe in 6 L of blood. First calculate how many grams of hemoglobin as in 6 L of blood 15.4 g /100 ml * 6L = 15.4 g / 0.1 L * 6 L = 924 g Now calculate how many moles of hemoglobin you have by dividing the mass of hemoglobin by its molar mass 924 g / 64500 g/mol = 0.014326 moles Since there's 4 Fe atoms per hemoglobin molecule, multiply by 4 0.014326 * 4 = 0.057304 moles of Fe atoms. Finally, multiply the number of moles of Fe atoms by avogadro's number 0.057304 * 6.0221409 x 10^23 = 3.45093 x 10^22

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