Question

A biomolecule contains 0.2% Fe2+
by mass. The minimum molecular mass of the
biomolecule is (Atomic mass of Fe = 56 u)​

Answer 1

Answer:

0.2 % ---56 u

then 100 % would be 2800 u so answer is 2800 u

Answer 2

Answer:

28000 u

Explanation:

We are given that a bio-molecule contains 0.2% Fe+2 by mass.

We have to find the minimum molecular mass of the biomolecule.

Atomic mass of Fe=56 u

Let x be the  minimum molecular mass of biomolecule

0.2% of x=56 u

$\frac{0.2}{100}\times x=56$

$\frac{2}{1000}\times x=56$

$x=\frac{56000}{2}=28000 u$

Hence, the minimum molecular mass of bio-molecule=28000 u