Elemental analysis of the highly complex, macro-biomolecule peroxidase anhydrous enzyme reveals that — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

The concept of "minimum molecular weight" operates on the assumption that a single molecule of the compound must contain at least ONE complete atom of the specified element. Mass of Se in one mole of enzyme $\geq 78.4\text{ g}$. This $78.4\text{ g}$ constitutes exactly $0.5\%$ of the total molar mass ($M$). $\frac{0.5}{100} \times M = 78.4 \implies M = \frac{78.4 \times 100}{0.5} = 15680$. In scientific notation: $1.568 \times 10^4\text{ g mol}^{-1}$.