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What does molecular mass mean?
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What does mass mean in chemistry?
Molecular mass is a number equal to the sum of the atomic masses of the atoms in a molecule. The molecular mass gives the mass of a molecule relative to that of the 12 C atom, which is taken to have a mass of 12.
The molecular mass (m) is the mass of a given molecule. Units of daltons (Da) are often used. [1] Different molecules of the same compound may have different molecular masses because they contain different isotopes of an element.
Feb 21, 2024 · Molecular mass, also known as molecular weight, is the sum of atomic masses of the elements present in a molecule. It is a number that indicates how many times one molecule of a substance is heavier than 1/12th of the mass of one atom of carbon-12.
Apr 17, 2023 · The composition of a compound may be determined from its chemical formula and the atomic masses of the elements that make up the compound. The mass of a molecule is called its molecular mass. The molecular mass is calculated summing the masses of all the atoms shown in the chemical formula.
The molecular mass (or molecular weight) is the total mass of all the atoms in a molecule. It is calculated as the sum of the atomic masses of each atom in the molecule. The atomic mass of an atom is usually given in atomic mass units (amu), where 1 amu is approximately equal to the mass of a single proton or neutron.
When discussing atoms and molecules, the mass of a molecule is often referred to as the "molecular weight". There is no univerally-accepted definition of this term; however, mosts chemists agree that it means an average mass, and many consider it dimensionless.
Oct 19, 2022 · The meaning of MOLECULAR MASS is the mass of a molecule that is equal to the sum of the masses of all the atoms contained in the molecule.
