Respuesta :
Molecular mass is the total of the atomic masses of all the atoms in the molecule. The minimum molecular mass of the protein is 11,363.64 g/mol.
What is the percent by mass?
The percent by mass is the percentage composition of the mass of the solute in the mass of the solution.
As the percent by mass of zinc is 0.579 then in 100 gm of substance 0.579 gm zinc will be present. The molar mass of zinc is 65.38 u. Moles of zinc will be calculated as:
[tex]\begin{aligned} \rm moles &= \rm \dfrac {mass}{molar\; mass}\\\\&= \dfrac{0.579}{65.38}\\\\&= 0.0088\;\rm moles\end{aligned}[/tex]
So, the molecular mass of the protein will be:
[tex]\dfrac{100}{0.0088} = 11,363.64 \;\rm g/mol[/tex]
Therefore, 11,363.64 g/mol is the minimum molecular mass of the protein.
Learn more about percent by mass here:
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