thx...
更新1:
咁我想問埋 1mole既NaCl solution有1mole Na+ 同1 mole既Cl- 咁如果1mole既Na2SO4 solution, 係唔係會有2 mole既Na+架?
oxidation no
回答 (2)
2007-03-03 8:20 pm
✔ 最佳答案
The oxidation number of the compound - NH3 = 0The oxidation of number of H = +1 (not 1, + sign is needed.)
So, the oxidation number of N
= 0 - (1 X 3)
= -3
In 1 mole of Na2SO4 solution, there are 2 moles of Na+ ions.
It is because 2 Na+ ions are needed to form 1 Na2SO4.
So, in 1 mole of Na2SO4 solution, there are 2 moles of Na+ ions.
2007-03-01 3:34 am
NH3 ge oxidation no 係= 0
H ge oxidation no 係= 1
N =?
N + 1x3 = 0
N = -3
H ge oxidation no 係= 1
N =?
N + 1x3 = 0
N = -3
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