please explain
2007-09-21 10:10:45 · 3 answers · asked by PiNk-PrInCeSs 3 in Science & Mathematics ➔ Chemistry
and Fe in K3Fe(CN)6
2007-09-21 10:14:40 · update #1
Oygen is almost always -2. 3 oxygens will be -6
+5 - 6 = -1
Chlorine oxidation number is +5
For K3Fe(CN)6
(CN) is -1 (a good one to memorize)
6 (CN) = -6
K is always +1
3 K = +3
+3 +3 -6 = 0
Since the molecule has no formal charge, Fe must be +3.
2007-09-21 10:16:40 · answer #1 · answered by skipper 7 · 0⤊ 0⤋
The oxidation number of oxygen is -2.
The oxidation number of chlorine is -1-3*(-2)=5.
The oxidation number of (CN) is -1.
The oxidation number of K is +1.
The oxidation number of Fe is -1*3-6*(-1)=+3.
2007-09-21 17:22:35 · answer #2 · answered by atrichtch 2 · 0⤊ 0⤋
+5.
+5 + 3(-2) = -1
Okay: Fe in K3Fe(CN)6 is +3. K3 is +3, 6CN- is -6, so Fe must be +3
2007-09-21 17:15:47 · answer #3 · answered by steve_geo1 7 · 0⤊ 0⤋