Percentage of Se (atomic mass = 78.4) in peroxidase anhydrous enzyme is 0.5% by mass

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

Percentage of Se (atomic mass = 78.4) in peroxidase anhydrous enzyme is 0.5% by mass. The minimum molar mass of enzyme is: (1)

1.568 \times 10^3

(2)

1.568 \times 10^4

(3) 25.68 (4)

4.316 \times 10^4