Molar mass of sodium citrate (Na3C6H5O7)

The molar mass of sodium citrate (Na3C6H5O7) is 258.069 g/mol.

trisodium citrate

Step-by-step calculation

ElementAtomsAtomic massSubtotal
Sodium × 3 22.99 = 68.97
Carbon × 6 12.011 = 72.066
Hydrogen × 5 1.008 = 5.04
Oxygen × 7 15.999 = 111.993
Total258.069 g/mol

Percent composition by element

  • Sodium 26.73%
  • Carbon 27.93%
  • Hydrogen 1.95%
  • Oxygen 43.4%

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FAQ

What is the molar mass of Na3C6H5O7?

The molar mass of sodium citrate (Na3C6H5O7) is 258.069 g/mol.

How do you calculate the molar mass of Na3C6H5O7?

Multiply the atomic mass of each element by the number of its atoms in Na3C6H5O7, then add the results: 3 × 22.99 (Na) + 6 × 12.011 (C) + 5 × 1.008 (H) + 7 × 15.999 (O) = 258.069 g/mol.

What percentage of Na3C6H5O7 is Oxygen?

Oxygen makes up 43.4% of the mass of sodium citrate (Na3C6H5O7).