How many moles of each of the following are present in 0.26 mol aluminum dichromate?
aluminum?
chromium?
oxygen?
2006-09-14 15:20:17 · 3 answers · asked by No Know 4 in Science & Mathematics ➔ Chemistry
Al2(Cr2O7)3
therefore in .26 mol aluminum chromate there are
0.52 moles of Aluminum
1.56 moles of Chromium
5.46 moles of Oxygen
2006-09-14 16:36:25 · answer #1 · answered by Brian F 4 · 0⤊ 0⤋
To do this you need the formula for aluminum dichromate and that is Al2(Cr2O7)3. So for every mole of all that there are twice as many moles of aluminum, six times as many chromium, and twenty-one times as much oxygen.
Multiply 0.26 mols Al2(Cr2O7)3 x (2 mols Al/ mol Al2(Cr2O7)3) to get mols of aluminum in aluminum dichromate. Drop six and 21 into that with the symbol for each element to get the chromium and oxygen. Remember that this specifies the oxygen as O, not O2.
2006-09-14 22:28:11 · answer #2 · answered by Ren Hoek 5 · 0⤊ 0⤋
I have about 3 or 4....they keep fvcken up my lawn with their little tunnels.
2006-09-14 22:21:50 · answer #3 · answered by Anonymous · 0⤊ 0⤋