KHP, or Potassium Hydrogen Phthalate, is a commonly used standard in acid-base titrations. The molar mass of KHP is calculated by adding the atomic masses of all the atoms in its chemical formula, which is C8H5KO4.
Here’s how the molar mass is calculated:
- Carbon (C): 8 atoms × 12.01 g/mol = 96.08 g/mol
- Hydrogen (H): 5 atoms × 1.01 g/mol = 5.05 g/mol
- Potassium (K): 1 atom × 39.10 g/mol = 39.10 g/mol
- Oxygen (O): 4 atoms × 16.00 g/mol = 64.00 g/mol
Adding these together: 96.08 + 5.05 + 39.10 + 64.00 = 204.23 g/mol.
Therefore, the molar mass of KHP is 204.23 g/mol.