toxin - 18-9-2005 at 08:32
I want to know If I am doing these right, please find the oxidation numbers for the following
NOsub2
(NOsub2)super-1
KClOsub3
In NOsub2 a charge is not indicated, do I assume that the sum of the oxidation numbers of the compound is equal to zero ?
I got this sheet with a list of polyatomic ions and there charges and it says Nitrite, (NOsub2)super-1, sum of oxidation numbers is equal to the
charge of the polyatomic ion which is -1, does that mean that NOsub2 also has a negative charge even though it is not indicated ?
How would you name NOsub2 isn't it Nitrogen dioxide ?
Yay, answers!
BromicAcid - 18-9-2005 at 08:40
NO<sub>2</sub>
N = +4
O = -2 (Nearly always)
(NO<sub>2</sub>
<sup>-1</sup>
N = +3
O = -2
KClO<sub>3</sub>
K = +1 (Nearly always)
Cl = +5
O = -2
If the charge is not indicated assume it is neutral. Even though your sheet lists nitrite as -1 that doesn't mean your nitrogen dioxide
(NO<sub>2</sub> is also minus one, they have different structures and
bonding.
neutrino - 18-9-2005 at 10:27
For future reference, there's NO<sub>2</sub><sup>+</sup> (nitronium ion), NO<sub>2</sub> (nitric oxide, one
of the few stable radicals), and NO<sub>2</sub><sup>-</sup> (nitrite ion).
12AX7 - 18-9-2005 at 14:25
What I don't get is N and Cl don't indicate +4 states, yet NO2 and ClO2 exist?
Hmm well N shows +4 on my periodic table, so in that case I'll ask: what other compounds use this? Is with oxygen the only one?
Tim