Problem: Hemoglobin, a protein in red blood cells, carries O 2 from the lungs to the body’s cells. Iron (as ferrous ion, Fe2+) makes up 0.33 mass % of hemoglobin. If the molar mass of hemoglobin is 6.8×104 g/mol, how many Fe2+ ions are in one molecule?

FREE Expert Solution

For this problem, we are being asked to calculate the # of Fe2+ ions in one molecule of hemoglobin

Step 1. Find the mass of 1 molecule of hemoglobin

1 molecule hemoglobin 1 mol6.022x1023 molecules6.8x104 g1 mol = 1.129x10-19 g hemoglobin

Step 2. Find the mass of Fe2+

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Problem Details

Hemoglobin, a protein in red blood cells, carries O 2 from the lungs to the body’s cells. Iron (as ferrous ion, Fe2+) makes up 0.33 mass % of hemoglobin. If the molar mass of hemoglobin is 6.8×104 g/mol, how many Fe2+ ions are in one molecule?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Mass Percent concept. You can view video lessons to learn Mass Percent. Or if you need more Mass Percent practice, you can also practice Mass Percent practice problems.

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Based on our data, we think this problem is relevant for Professor Dixon's class at UCF.

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.