Find oxidation number of Na3[Co(CO3)3] Answer is 3?
回答 (1)
2017-10-04 10:13 pm
In Na₃[Co(CO₃)₃] :
Oxidation number of Na = +1
Total oxidation number of CO₃²⁻ = -2
Total oxidation number in the neutral compound Na₃[Co(CO₃)₃] = 0
[Total oxidation number of Na] + [Oxidation number of Co] + [Total oxidation number of CO₃²⁻] = 0
[(+1) × 3] + [Oxidation number of Co] + [(-2) × 3] = 0
(+3) + [Oxidation number of Co] + (-6) = 0
Oxidation number of Co = +3
Oxidation number of Na = +1
Total oxidation number of CO₃²⁻ = -2
Total oxidation number in the neutral compound Na₃[Co(CO₃)₃] = 0
[Total oxidation number of Na] + [Oxidation number of Co] + [Total oxidation number of CO₃²⁻] = 0
[(+1) × 3] + [Oxidation number of Co] + [(-2) × 3] = 0
(+3) + [Oxidation number of Co] + (-6) = 0
Oxidation number of Co = +3
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