Grams to Atoms Calculator

Enter the mass of the substance in grams.
Enter the molar mass of the substance (e.g., 18.015 for water).

Need to convert grams to atoms? Our calculator handles complex atomic calculations effortlessly, using molar mass and Avogadro’s number.

Grams to Atoms Conversion Table

Mass (g)MolesNumber of Atoms (× 10^23)
11 / 12.01 = 0.08330.0833 × 6.022 = 5.02
55 / 12.01 = 0.41650.4165 × 6.022 = 25.08
1010 / 12.01 = 0.83300.8330 × 6.022 = 50.15
2020 / 12.01 = 1.66671.6667 × 6.022 = 100.33
5050 / 12.01 = 4.1654.165 × 6.022 = 250.83

Grams to Atoms Conversion Formula

The equation connecting grams and atoms follows this formula:

Number of Atoms = (Mass in grams × Avogadro's number) ÷ Atomic mass

Where:

  • Avogadro’s number = 6.022 × 10²³ atoms/mole
  • Atomic mass varies by element (found on the periodic table)

Converting 10 grams of sodium (Na, atomic mass = 22.99 g/mol):

Number of Atoms = (10 g × 6.022 × 10²³) ÷ 22.99 g/mol = 2.62 × 10²³ atoms

How to Convert From Grams to Atoms

  • Identify the element’s atomic mass from the periodic table
  • Convert the given mass to moles by dividing grams by atomic mass
  • Multiply the moles by Avogadro’s number to get atoms

Converting 5 grams of aluminum (Al, atomic mass = 26.98 g/mol):

Moles = 5 g ÷ 26.98 g/mol = 0.185 moles

Atoms = 0.185 moles × 6.022 × 10²³ = 1.115 × 10²³ atoms

  • Iron (Fe): 2.8 g Fe (55.85 g/mol): Atoms = (2.8 × 6.022 × 10²³) ÷ 55.85 = 3.02 × 10²² atoms
  • Copper (Cu): 15 g Cu (63.55 g/mol): Atoms = (15 × 6.022 × 10²³) ÷ 63.55 = 1.42 × 10²³ atoms
  • Gold (Au): 8.2 g Au (196.97 g/mol): Atoms = (8.2 × 6.022 × 10²³) ÷ 196.97 = 2.51 × 10²² atoms
  • Silver (Ag): 4.5 g Ag (107.87 g/mol): Atoms = (4.5 × 6.022 × 10²³) ÷ 107.87 = 2.51 × 10²² atoms
  • Platinum (Pt): 6.7 g Pt (195.08 g/mol): Atoms = (6.7 × 6.022 × 10²³) ÷ 195.08 = 2.07 × 10²² atoms

What is Grams and Atoms?

Grams function as a measurement unit of mass in the metric system, quantifying the amount of matter in a substance. This standard unit enables precise laboratory measurements and industrial applications.

Atoms represent the fundamental particles of matter, comprising protons, neutrons, and electrons. These microscopic units combine to form molecules and compounds. The correlation between grams and atoms connects macroscopic measurements with microscopic quantities, essential for chemical analysis.


Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *