the red colour of blood is due to a compound called haemoglobin it contains 0.33 5% of iron 4 atom of iron are present in one molecule of haemoglobin what is the molecular weight
Answers
Explanation:
abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells (erythrocytes) of almost all vertebrates[4] (the exception being the fish family Channichthyidae[5]) as well as the tissues of some invertebrates. Hemoglobin in blood carries oxygen from the lungs or gills to the rest of the body (i.e. the tissues). There it releases the oxygen to permit aerobic respiration to provide energy to power the functions of the organism in the process called metabolism. A healthy individual has 12 to 20 grams of hemoglobin in every 100 ml of blood.
Answer:
Explanation:Let molecular mass of heamoglobin molecule be
=
M
One molecule of heamoglobin contains
4
Fe
atoms of atomic mass
=
55.85
each
,
Total mass of iron in one molecule of heamoglobin
=
4
×
55.85
=
223.4
To calculate the percentage of iron:
M
amu of heamoglobin has iron
=
223.4
100
amu of heamoglobin has iron
=
223.4
M
×
100
Equating to the given value,
223.4
M
×
100
=
0.335
Solving for
M
,
M
=
223.4
0.335
×
100
=
66686.57
g
m
o
l
−
1
, rounded to two decimal places.
.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
At some places the iron percentage in heomoglobin is given as
0.3335
%
. Using the published average atomic mass of iron as
55.847
,
M
=
66982.9085
g
m
o
l
−
1