Hemoglobin is the oxygen carrying compound found in human blood. It is found to contain 0.3335% iron by mass. It is already known that one m

Question

Hemoglobin is the oxygen carrying compound found in human blood. It is found to contain 0.3335% iron by mass. It is already known that one molecule of hemoglobin contains four atoms of iron. What is the molecular mass of hemoglobin in g/mol

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Yến Oanh 1 week 2021-07-21T20:47:48+00:00 1 Answers 0 views 0

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    2021-07-21T20:49:05+00:00

    Answer:

    66986.51 g/mol

    Explanation:

    According to this question, Hemoglobin- an oxygen carrying compound in the blood, is found to contain 0.3335% iron (Fe) by mass.

    * One molecule of hemoglobin contains four atoms of iron

    If 1 atom of Fe = 55.85g/mol

    Then 4 atoms = 4 × 55.85 = 223.4g/mol

    So there are 223.4g/mol of Fe in one molecule of hemoglobin

    If hemoglobin contains 0.3335% iron by mass, this mathematically means that:

    223.4g/mol of Fe ÷ molar mass of hemoglobin = 0.3335%

    That is;

    223.4/M.M = 0.3335/100

    Cross multiply

    0.3335 M.M = 22340

    M.M = 22340 ÷ 0.3335

    M.M = 66986.51

    Hence, the molar mass of hemoglobin is 66986.51g/mol.

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