One mole of `CO_(2)` contains

Options

A. `6.023xx10^(23)` atoms of C
B. `6.023xx10^(23)` atoms of O
C. `18.1xx10^(23)` molecules of `CO_(2)`
D. 3 g atoms of `CO_(2)`

Explanation

To solve the question "One mole of CO₂ contains", we need to analyze the components of carbon dioxide (CO₂) and apply the concept of a mole in chemistry.

### Step-by-Step Solution:

1. **Understanding the Mole Concept**:
- A mole is a unit used to measure the amount of a substance. One mole of any substance contains Avogadro's number of entities (atoms, molecules, etc.), which is approximately \(6.022 \times 10^{23}\).

2. **Identifying the Composition of CO₂**:
- Carbon dioxide (CO₂) is composed of one carbon atom (C) and two oxygen atoms (O). Thus, the molecular formula indicates that each molecule of CO₂ contains:
- 1 Carbon atom
- 2 Oxygen atoms

3. **Calculating the Number of Molecules in One Mole of CO₂**:
- Since one mole of any substance contains \(6.022 \times 10^{23}\) molecules, one mole of CO₂ will also contain:
- \(6.022 \times 10^{23}\) molecules of CO₂.

4. **Calculating the Number of Atoms in One Mole of CO₂**:
- To find the total number of atoms in one mole of CO₂, we need to consider the atoms in each molecule:
- Each molecule of CO₂ contains 1 Carbon atom and 2 Oxygen atoms.
- Therefore, the total number of atoms in one molecule of CO₂ = \(1 + 2 = 3\) atoms.
- Thus, in one mole of CO₂, the total number of atoms will be:
- \(3 \times (6.022 \times 10^{23})\) atoms.

5. **Calculating the Total Mass of One Mole of CO₂**:
- The molar mass of CO₂ can be calculated as follows:
- Molar mass of Carbon (C) = 12 g/mol
- Molar mass of Oxygen (O) = 16 g/mol
- Therefore, molar mass of CO₂ = \(12 + (2 \times 16) = 44\) g/mol.
- This means one mole of CO₂ weighs 44 grams.

### Final Answer:
One mole of CO₂ contains:
- \(6.022 \times 10^{23}\) molecules of CO₂,
- \(3 \times (6.022 \times 10^{23})\) atoms in total (which includes 1 Carbon atom and 2 Oxygen atoms),
- A mass of 44 grams.