How do you find the molar mass of potassium phosphate?

To find the molar mass of potassium phosphate (K₃PO₄), you need to sum the atomic masses of each element in the compound, multiplied by the number of atoms of that element present in one molecule of potassium phosphate.

Here's a breakdown:

1. Identify the chemical formula: The chemical formula for potassium phosphate is K₃PO₄. This indicates there are 3 potassium (K) atoms, 1 phosphorus (P) atom, and 4 oxygen (O) atoms in each molecule.

2. Find the atomic masses of each element: You can find the atomic masses on the periodic table.

   • Potassium (K): Approximately 39.10 g/mol
   • Phosphorus (P): Approximately 30.97 g/mol
   • Oxygen (O): Approximately 16.00 g/mol

3. Calculate the molar mass: Multiply the number of atoms of each element by its atomic mass, and then sum the results.

   Molar mass of K₃PO₄ = (3 x Atomic mass of K) + (1 x Atomic mass of P) + (4 x Atomic mass of O)

   Molar mass of K₃PO₄ = (3 x 39.10 g/mol) + (1 x 30.97 g/mol) + (4 x 16.00 g/mol)

   Molar mass of K₃PO₄ = 117.30 g/mol + 30.97 g/mol + 64.00 g/mol

   Molar mass of K₃PO₄ = 212.27 g/mol

Therefore, the molar mass of potassium phosphate (K₃PO₄) is approximately 212.27 g/mol.