Molar mass of sodium benzoate (C6H5COONa)

The molar mass of sodium benzoate (C6H5COONa) is 144.105 g/mol.

Step-by-step calculation

ElementAtomsAtomic massSubtotal
Carbon × 7 12.011 = 84.077
Hydrogen × 5 1.008 = 5.04
Oxygen × 2 15.999 = 31.998
Sodium × 1 22.99 = 22.99
Total144.105 g/mol

Percent composition by element

  • Carbon 58.34%
  • Hydrogen 3.5%
  • Oxygen 22.2%
  • Sodium 15.95%

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FAQ

What is the molar mass of C6H5COONa?

The molar mass of sodium benzoate (C6H5COONa) is 144.105 g/mol.

How do you calculate the molar mass of C6H5COONa?

Multiply the atomic mass of each element by the number of its atoms in C6H5COONa, then add the results: 7 × 12.011 (C) + 5 × 1.008 (H) + 2 × 15.999 (O) + 1 × 22.99 (Na) = 144.105 g/mol.

What percentage of C6H5COONa is Carbon?

Carbon makes up 58.34% of the mass of sodium benzoate (C6H5COONa).