Answer to Question #175358 in General Chemistry for ferry

Question

iron 2 sulfate heptahydrate, FeSO4 + 7H2O is often used to treat patients with anemia due to iron mineral deficiency.

a) what is the molar mass of iron 2 sulfate heptahydrate?

b) calculate the percentage of iron in iron 2 sulfate heptahydrate.

Answer 1

(a) Molar mass of $FeSO_4$ is $278\dfrac{gm}{mol}$

(b)the percentage of iron in iron 2 sulfate heptahydrate

molar mass of Fe is $55.85\dfrac{gm}{mol}$

%percentage content =$\dfrac{55.85}{278}\times100=20.08$ %

$\%$