How many molecules are present in 1 equivalent each of hydrogen, oxygen and nitrogen?

Explanation

To determine how many molecules are present in 1 equivalent of hydrogen (H2), oxygen (O2), and nitrogen (N2), we can follow these steps:

### Step 1: Understand the concept of equivalent
An equivalent is a measure of the reactive capacity of a molecule. For gases like hydrogen, oxygen, and nitrogen, we often consider their molecular forms (H2, O2, N2) when calculating equivalents.

### Step 2: Identify the n-factor for each gas
- **Hydrogen (H2)**: The n-factor for H2 is 2 because each molecule can donate 2 moles of electrons (or equivalents).
- **Oxygen (O2)**: The n-factor for O2 is 4 because each molecule can react with 4 moles of electrons (or equivalents).
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