2007-01-29 14:17:19 · 5 answers · asked by Creative Name 3 in Science & Mathematics ➔ Chemistry
Yes, it is EXACTLY the same thing. Before 1983 (or so) the term in use was molecular weight (or atomic, in case). Actually, the term was misleading, because weight and mass are quite different concepts in physics. That's why that year chemists in congress eventually agreed about amending that mistake (a blunder !). If you read an old textbook, you will find the term mol. weight; if you take a recent book, you are discouraged from using that, and asked to use molar mass only.
2007-01-30 00:08:11 · answer #1 · answered by Len M 3 · 0⤊ 0⤋
Essentially yes.
The "molar mass" is the mass for 1 mol of atoms/molecules (6 x 10^23 or so of them). If you use the masses in the periodic table, it is equivalent (eg: O2 gas is 32 g/mol as calculated by adding the mass of 2 O atoms in the table; both the molecular weight and molar mass are 32)
BF
4th yr Chem Major
U of O
2007-01-29 14:23:07 · answer #2 · answered by Houston 3 · 1⤊ 0⤋
Molar mass is the mass in gram of exactly one 'mole' of either one single element (atomic #) or a compound which is the molar mass of all the elements in the formula added together...
get it?
2007-01-29 14:30:26 · answer #3 · answered by Amanda A 1 · 0⤊ 0⤋
No.
Mass and weight are different concepts.
2007-01-29 14:22:23 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Not really.
2007-01-29 14:23:46 · answer #5 · answered by JiveSly 4 · 0⤊ 0⤋