Which has minnimum number of oxygen atom ?

Options

A. 10 mL `H_(2) O(l)`
B. 0.1 mole `V_(2) O_(5) (s)`
C. 12 gm `O_(3)(g)`
D. `12.044 xx 10^(22) " molecules of " CO_(2)`

Answer

To determine which option has the minimum number of oxygen atoms, we will analyze each option step by step.

### Step 1: Calculate the number of oxygen atoms in 10 mL of liquid H2O

1. **Calculate the mass of water:**
- Density of water = 1 g/mL
- Volume of water = 10 mL
- Mass of water = Density × Volume = 1 g/mL × 10 mL = 10 g

2. **Calculate the moles of water (H2O):**
- Molecular mass of H2O = 18 g/mol
- Moles of H2O = Mass / Molecular mass = 10 g / 18 g/mol = 0.5556 moles

3. **Calculate the number of molecules of water:**
- Number of molecules = Moles × Avogadro's number = 0.5556 moles × 6.022 × 10²³ molecules/mol ≈ 3.34 × 10²³ molecules

4. **Calculate the number of oxygen atoms:**
- Each molecule of H2O contains 1 oxygen atom.
- Therefore, number of oxygen atoms = Number of molecules = 3.34 × 10²³ oxygen atoms.

### Step 2: Calculate the number of oxygen atoms in 0.1 moles of V2O5

1. **Calculate the number of molecules of V2O5:**
- Moles of V2O5 = 0.1 moles
- Number of molecules = 0.1 moles × 6.022 × 10²³ molecules/mol = 6.022 × 10²² molecules

2. **Calculate the number of oxygen atoms:**
- Each molecule of V2O5 contains 5 oxygen atoms.
- Therefore, number of oxygen atoms = Number of molecules × 5 = 6.022 × 10²² × 5 = 30.11 × 10²² oxygen atoms.

### Step 3: Calculate the number of oxygen atoms in 12 g of O3

1. **Calculate the moles of O3:**
- Molecular mass of O3 = 48 g/mol (16 g/mol × 3)
- Moles of O3 = Mass / Molecular mass = 12 g / 48 g/mol = 0.25 moles

2. **Calculate the number of molecules of O3:**
- Number of molecules = 0.25 moles × 6.022 × 10²³ molecules/mol = 1.505 × 10²³ molecules

3. **Calculate the number of oxygen atoms:**
- Each molecule of O3 contains 3 oxygen atoms.
- Therefore, number of oxygen atoms = Number of molecules × 3 = 1.505 × 10²³ × 3 = 4.515 × 10²³ oxygen atoms.

### Step 4: Calculate the number of oxygen atoms in 12.044 × 10²² molecules of CO2

1. **Calculate the number of oxygen atoms:**
- Each molecule of CO2 contains 2 oxygen atoms.
- Therefore, number of oxygen atoms = Number of molecules × 2 = 12.044 × 10²² × 2 = 24.088 × 10²² oxygen atoms.

### Conclusion:

Now we summarize the number of oxygen atoms calculated for each option:

- **H2O:** 3.34 × 10²³ oxygen atoms
- **V2O5:** 30.11 × 10²² oxygen atoms
- **O3:** 4.515 × 10²³ oxygen atoms
- **CO2:** 24.088 × 10²² oxygen atoms

The minimum number of oxygen atoms is from **H2O** with **3.34 × 10²³** oxygen atoms.

### Final Answer:
**The option with the minimum number of oxygen atoms is 10 mL of liquid H2O.**

---