Mr(K3PO4)

To find the molar mass of potassium phosphate (K₃PO₄), you need to sum the molar masses of each of its constituent elements. Here’s how you can do it: 1. **Potassium (K)**: The molar mass of potassium is approximately 39.10 g/mol. Since there are three potassium atoms in K₃PO₄, you multiply this by 3: - \( 3 \times 39.10 \, \text{g/mol} = 117.30 \, \text{g/mol} \) 2. **Phosphorus (P)**: The molar mass of phosphorus is approximately 30.97 g/mol. Since there is one phosphorus atom in K₃PO₄: - \( 1 \times 30.97 \, \text{g/mol} = 30.97 \, \text{g/mol} \) 3. **Oxygen (O)**: The molar mass of oxygen is approximately 16.00 g/mol. Since there are four oxygen atoms in K₃PO₄: - \( 4 \times 16.00 \, \text{g/mol} = 64.00 \, \text{g/mol} \) Now, add these together to find the total molar mass of K₃PO₄: \[ \text{Molar mass of K}_3\text{PO}_4 = 117.30 \, \text{g/mol} + 30.97 \, \text{g/mol} + 64.00 \, \text{g/mol} = 212.27 \, \text{g/mol} \] Therefore, the molar mass of potassium phosphate (K₃PO₄) is approximately **212.27 g/mol**.