Molar mass of phosphorus pentachloride (PCl5)

The molar mass of phosphorus pentachloride (PCl5) is 208.224 g/mol.

Step-by-step calculation

ElementAtomsAtomic massSubtotal
Phosphorus × 1 30.974 = 30.974
Chlorine × 5 35.45 = 177.25
Total208.224 g/mol

Percent composition by element

  • Phosphorus 14.88%
  • Chlorine 85.12%

Try another formula

H2O NaCl CO2 C6H12O6 H2SO4 Ca(OH)2 CuSO4·5H2O C8H10N4O2

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Related compounds

PCl3 Phosphorus trichloride NaCl Sodium chloride KCl Potassium chloride HCl Hydrochloric acid KClO3 Potassium chlorate AgCl Silver chloride

FAQ

What is the molar mass of PCl5?

The molar mass of phosphorus pentachloride (PCl5) is 208.224 g/mol.

How do you calculate the molar mass of PCl5?

Multiply the atomic mass of each element by the number of its atoms in PCl5, then add the results: 1 × 30.974 (P) + 5 × 35.45 (Cl) = 208.224 g/mol.

What percentage of PCl5 is Chlorine?

Chlorine makes up 85.12% of the mass of phosphorus pentachloride (PCl5).