5 moles of `H_(2)SO_(4)` contain

Options

A. 5 eq. of H
B. 5 moles of S
C. 20 eq. of O
D. 10 eq. each of H, S and O

Answer

To determine the composition of 5 moles of \( H_2SO_4 \) (sulfuric acid), we need to analyze the chemical formula and calculate the number of moles of each element present in the compound.

### Step-by-Step Solution:

1. **Identify the Chemical Formula**:
The chemical formula for sulfuric acid is \( H_2SO_4 \). This indicates that each molecule of sulfuric acid contains:
- 2 hydrogen (H) atoms
- 1 sulfur (S) atom
- 4 oxygen (O) atoms

2. **Calculate the Number of Moles of Each Element in 5 Moles of \( H_2SO_4 \)**:
- **Hydrogen**:
Each mole of \( H_2SO_4 \) contains 2 moles of hydrogen. Therefore, in 5 moles of \( H_2SO_4 \):
\[ \text{Moles of H} = 5 \, \text{moles of } H_2SO_4 \times 2 \, \text{moles of H/mole of } H_2SO_4 = 10 \, \text{moles of H} \]

- **Sulfur**:
Each mole of \( H_2SO_4 \) contains 1 mole of sulfur. Therefore, in 5 moles of \( H_2SO_4 \):
\[ \text{Moles of S} = 5 \, \text{moles of } H_2SO_4 \times 1 \, \text{mole of S/mole of } H_2SO_4 = 5 \, \text{moles of S} \]

- **Oxygen**:
Each mole of \( H_2SO_4 \) contains 4 moles of oxygen. Therefore, in 5 moles of \( H_2SO_4 \):
\[ \text{Moles of O} = 5 \, \text{moles of } H_2SO_4 \times 4 \, \text{moles of O/mole of } H_2SO_4 = 20 \, \text{moles of O} \]

3. **Summarize the Results**:
- In 5 moles of \( H_2SO_4 \):
- Moles of Hydrogen (H) = 10
- Moles of Sulfur (S) = 5
- Moles of Oxygen (O) = 20

### Final Answer:
5 moles of \( H_2SO_4 \) contain:
- 10 moles of Hydrogen (H)
- 5 moles of Sulfur (S)
- 20 moles of Oxygen (O)