The empirical formula of hydrogen peroxide is……………….

Answer

To find the empirical formula of hydrogen peroxide (H₂O₂), we can follow these steps:

### Step 1: Identify the Molecular Formula
The molecular formula of hydrogen peroxide is given as H₂O₂. This indicates that there are 2 hydrogen (H) atoms and 2 oxygen (O) atoms in one molecule of hydrogen peroxide.

### Step 2: Determine the Ratio of Atoms
Next, we need to determine the ratio of the number of atoms of each element in the molecular formula. In H₂O₂:
- Number of H atoms = 2
- Number of O atoms = 2

### Step 3: Simplify the Ratio
To find the empirical formula, we simplify the ratio of the atoms to the smallest whole numbers. The ratio of H to O in H₂O₂ is 2:2.

### Step 4: Divide by the Greatest Common Factor
To simplify the ratio 2:2, we divide both numbers by their greatest common factor, which is 2:
- H: 2 ÷ 2 = 1
- O: 2 ÷ 2 = 1

### Step 5: Write the Empirical Formula
After simplification, the ratio of hydrogen to oxygen is 1:1. Therefore, the empirical formula of hydrogen peroxide is HO.

### Final Answer
The empirical formula of hydrogen peroxide is **HO**.

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