2007-03-10 12:29:12 · 3 answers · asked by torinaishere 1 in Science & Mathematics ➔ Chemistry
The formula for aluminum sulfate is Al2(SO4)3.
There are two atoms of aluminum (Al), three atoms of sulfur (S), and twelve atoms of oxygen (O).
One atom of Al is 27g, one atom of S is 32g, and one atom of oxygen is 16g.
Thus:
2(27) + 3(32) + 12(16) = 342
ANSWER: 342g
2007-03-11 15:08:15 · answer #1 · answered by ask.joseph 2 · 0⤊ 0⤋
Roll your own answer: Al2(SO4)3 is your chemical. Formula mass is 2Al+3S+12O. The masses of each element is 26, 32 and 16 respectively. So add it up
2007-03-10 12:33:33 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
342.15 g/mol is the molecular weight of the anhydrous salt
For more information see:
http://en.wikipedia.org/wiki/Aluminium_sulfate
Always try to find a chemistry reference for the molecular weight, and only calculate it as a last resort.
2007-03-10 12:34:27 · answer #3 · answered by Anonymous · 0⤊ 0⤋