What is kg-mole ? Find out the total number of electrons in a kg-mole of `O_(2)`.

Explanation

To solve the question, "What is kg-mole? Find out the total number of electrons in a kg-mole of O₂," we will follow these steps:

### Step 1: Understand what a kg-mole is
A kg-mole (kilomole) is a unit of measurement that represents the amount of a substance whose mass in kilograms is numerically equal to its molecular mass in grams. In simpler terms, 1 kg-mole of a substance contains 1000 grams of that substance.

### Step 2: Determine the molecular mass of O₂
The molecular mass of oxygen (O₂) can be calculated as follows:
- The atomic mass of oxygen (O) is approximately 16 g/mol.
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