and could someone explain to me how they got that? I just don't seem to be getting chemistry right now!
2006-10-22 18:42:36 · 5 answers · asked by el debbo 1 in Science & Mathematics ➔ Chemistry
CH3COCH3
thats 3 C, 1 O, 6 H.
3x12 + 16 + 6 x1 = 58g/mol
2006-10-22 18:46:45 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The molecular mass is 58. This arises from the molecular formula as follows:
CH3.CO.CH3
3 atoms of carbon = 36 (3x12)
1 atom of oxygen = 16 (1x16)
6 atoms of hydrogen = 6 (6x1)
Propanone is also commonly known as acetone.
2006-10-23 08:05:48 · answer #2 · answered by nhh220551 1 · 0⤊ 0⤋
the molecular formula of propanone is C3H80
so look up the various elements in the periodic table and note down their atomic number.
the atomic number is actually their atomic mass.
so the molecular mass = (3*12) + (8*1) + 16
= 60g
good luck with chem! :)
2006-10-23 06:23:52 · answer #3 · answered by cyl29 2 · 0⤊ 0⤋
And PLEASE ignore cy129...the atomic number is NOT equavalent to the atomic mass!! The others have got it right.
2006-10-24 08:45:21 · answer #4 · answered by drjaycat 5 · 0⤊ 0⤋
please check this site
http://www.newi.ac.uk/buckleyc/fbmolecules.htm
2006-10-23 03:43:28 · answer #5 · answered by Anonymous · 0⤊ 0⤋