What does one Dalton equal?

One Dalton is defined as one atomic mass unit (AMU), which is a standard unit of measurement used to quantify the mass of atoms and molecules. The value of one Dalton is equivalent to one twelfth of the mass of a carbon-12 atom. This unit is essential in the field of chemistry and molecular biology for measuring the mass of singular atoms, molecules, and compounds, thereby providing a basis for understanding molecular structure and interactions.

In contrast, the other options represent different units of measurement that serve distinct purposes: a gram is a unit of mass defined in the metric system; a mole is a unit used to measure the amount of substance, specifically 6.022 x 10²³ entities (such as atoms or molecules); and a liter is a unit of volume that quantifies the space occupied by a substance. These units are important in their own contexts but do not relate directly to the definition and application of a Dalton in measuring atomic or molecular mass.