0
The sum of the atomic weights of all atoms making up a molecule. Actually, what is meant by molecular weight is molecular mass. The use of this expression is historical, however, and will be maintained. The atomic weight is the mass, in Atomic Mass units, of an atom. It is approximately equal to the total number of nucleons, protons and neutrons composing the nucleus. Since 1961 the official definition of the atomic mass unit (http://www.answers.com/topic/amu) has been that it is 1/12 the mass of the carbon-12 http://www.answers.com/topic/isotope, which is assigned the value 12.000 exactly.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoThe molecular mass of a compound is the sum oh the atomic weights of the elements contained in the molecule of this compound.
Add your answer:
Earn +20 pts
What is the molecular weight of chymotrypsin?
It has a molecular weight of 21,600 Daltons
If you have molecular weight how can you find equivalent weight?
Equivalent weight ofc11h17n3os2 from molecular weight271.402
Molecular weight of petrol?
Petrol is an extremely complex mixture of organic compounds; each compound has his molecular weight. A molecular weight for a mixture is a nonsense.
How do you calculate number average molecular weight given molecular weight range and fraction?
Molecular weight is just an older term for molar mass. They are the same.
What is the molecular weight for the mineral calcite?
The molecular weight for mineral calcite is 100.09. Calculated from the formula (Mol_Wt_Calc).
What is the molecular weight of chymotrypsin?
It has a molecular weight of 21,600 Daltons
What is the molecular weight and molecular formula of potassium humate?
molecular structur C9H8K2O4molecular weight: 258.35
If you have molecular weight how can you find equivalent weight?
Equivalent weight ofc11h17n3os2 from molecular weight271.402
What is the molecular weight of vanillideneacetone?
The molecular weight of vanillideneacetone is 192.214g/mol.
What is the molecular weight of sodium nitrate?
Sodium nitrate molecular weight is 84,9947.
What is Sodium nitrate molecular weight?
Sodium nitrate molecular weight is 84,9947.
How do you calculate density from molecular weight?
the given molecular weight is divided by volume
Molecular weight of petrol?
Petrol is an extremely complex mixture of organic compounds; each compound has his molecular weight. A molecular weight for a mixture is a nonsense.
What is the molecular weight of tantalum?
The atomic weight (not molecular) of tantalum is 180,947 88(2).
How do you calculate number average molecular weight given molecular weight range and fraction?
Molecular weight is just an older term for molar mass. They are the same.
What is the molecular weight for Vitamin E?
Molecular formula: C29H50O2 Molecular weight: 430.71 CAS Number: 2074-53-5
What is the average molecular weight of mobiltherm 603 oil?
which is the average molecular weight 603 Mobiltherm?
