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To complete this table, we need to calculate the molar mass of each element in the compound \( \text{Pb(SO}_4)_2 \) and then find the total molar mass of the compound.

Here’s the step-by-step breakdown:

1. **Identify the elements and their counts**:
   - Lead (Pb): 1 atom
   - Sulfur (S): 2 atoms (since we have \( \text{SO}_4 \) twice)
   - Oxygen (O): 8 atoms (each \( \text{SO}_4 \) has 4 oxygens, so \( 4 \times 2 = 8 \))

2. **Atomic masses (approximate values)**:
   - \( \text{Pb} \): 207.2 g/mol
   - \( \text{S} \): 32.07 g/mol
   - \( \text{O} \): 16.00 g/mol

3. **Calculations**:
   - **Pb**: \( 1 \times 207.2 = 207.2 \, \text{g} \)
   - **S**: \( 2 \times 32.07 = 64.14 \, \text{g} \)
   - **O**: \( 8 \times 16.00 = 128.00 \, \text{g} \)

4. **Total Molar Mass of \( \text{Pb(SO}_4)_2 \)**:
   - Sum of all elements = \( 207.2 + 64.14 + 128.00 = 399.34 \, \text{g/mol} \)

Here’s how the table should look:

| Element | Calculations                    | Total Element Mass (g) |
|---------|---------------------------------|-------------------------|
| Pb      | \( 1 \times 207.2 \)            | 207.2                   |
| S       | \( 2 \times 32.07 \)            | 64.14                   |
| O       | \( 8 \times 16.00 \)            | 128.00                  |
| **Total Molar Mass** |                     | **399.34**              |

Would you like additional details on any of the steps, or do you have any questions?

### Related Questions:
1. What are molar masses and why are they important in chemistry?
2. How can we find the molar mass of a compound with polyatomic ions?
3. How is the molar mass used in stoichiometry problems?
4. What is the purpose of multiplying atomic masses by the number of atoms?
5. How does the molar mass affect reaction yields?

### Tip:
Always double-check the atomic masses used in calculations for accuracy, especially if working with different atomic mass standards.

Calculate the total molar mass of Pb(SO4)2 by filling out the table with element calculations and total element mass.

Learn how to calculate the molar mass of Pb(SO4)2 by breaking down the atomic masses of lead, sulfur, and oxygen. Understand how to sum up the contributions of each element to find the total molar mass.

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