The number of daltons in a gram can be calculated as 6.022 x 10^23. The dalton is also known as the atomic mass unit and is used to convey the mass of atomic and subatomic particles.
One dalton is equal to 1/12 the mass of the carbon-12 atom.
The Avogadro number is the equivalent in dalton of the gram. Therefore, 1/Avogadro number is the equivalent in grams of the dalton. The following is the Avogrado constant: NA :NA = 6.022 141 99(47) 1023 mol-1.
The dalton is named after British scientist John Dalton, who worked with properties of gases and formulated the atomic theory.