Which of the following would wight the highest?

Options

A. 0.2 moles of sucrose `(C_(12)H_(22)O_(11))`
B. 2 moles of `CO_(2)`
C. 0.2 moles of `CaCO_(3)`
D. 10 moles of `H_(2)O`
Thinking Process
1 mole = gram molecular mass of the compound.

Explanation

To determine which of the given options has the highest weight, we will calculate the weight of each substance based on the number of moles provided and their respective molar masses.

### Step-by-Step Solution:

1. **Calculate the weight of 0.2 moles of Sucrose (C₁₂H₂₂O₁₁)**:
- The molar mass of sucrose is calculated as follows:
- Carbon (C): 12 g/mol × 12 = 144 g
- Hydrogen (H): 1 g/mol × 22 = 22 g
- Oxygen (O): 16 g/mol × 11 = 176 g
- Total molar mass of sucrose = 144 g + 22 g + 176 g = 342 g/mol
- Weight of 0.2 moles of sucrose = 0.2 × 342 g = 68.4 g

2. **Calculate the weight of 2 moles of Carbon Dioxide (CO₂)**:
- The molar mass of carbon dioxide is calculated as follows:
- Carbon (C): 12 g/mol × 1 = 12 g
- Oxygen (O): 16 g/mol × 2 = 32 g
- Total molar mass of CO₂ = 12 g + 32 g = 44 g/mol
- Weight of 2 moles of CO₂ = 2 × 44 g = 88 g

3. **Calculate the weight of 0.2 moles of Calcium Carbonate (CaCO₃)**:
- The molar mass of calcium carbonate is calculated as follows:
- Calcium (Ca): 40 g/mol × 1 = 40 g
- Carbon (C): 12 g/mol × 1 = 12 g
- Oxygen (O): 16 g/mol × 3 = 48 g
- Total molar mass of CaCO₃ = 40 g + 12 g + 48 g = 100 g/mol
- Weight of 0.2 moles of CaCO₃ = 0.2 × 100 g = 20 g

4. **Calculate the weight of 10 moles of Water (H₂O)**:
- The molar mass of water is calculated as follows:
- Hydrogen (H): 1 g/mol × 2 = 2 g
- Oxygen (O): 16 g/mol × 1 = 16 g
- Total molar mass of H₂O = 2 g + 16 g = 18 g/mol
- Weight of 10 moles of H₂O = 10 × 18 g = 180 g

5. **Compare the weights calculated**:
- 0.2 moles of Sucrose = 68.4 g
- 2 moles of Carbon Dioxide = 88 g
- 0.2 moles of Calcium Carbonate = 20 g
- 10 moles of Water = 180 g

### Conclusion:
The highest weight among the options is from **10 moles of Water**, which weighs **180 grams**.

### Final Answer:
**Option 4: 10 moles of Water weighs the highest.**