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[co(en)(nh3)cl3]br what is the oxidation number of co
Accepted Answer
The oxidation number of Co in [Co(en)(NH3)Cl3]Br is +3. Here's how to determine it:
Ligands: The ligands in the complex are ethylenediamine (en), ammonia (NH3), and chloride (Cl). These ligands typically have charges of 0, 0, and -1, respectively.
Counterion: The counterion is bromide (Br), which has a charge of -1.
Overall Charge: The complex has a neutral charge since the counterion balances the charge of the complex ion.
Calculation: Let x be the oxidation number of Co. The overall charge can be expressed as: x + 0 + 0 + 3(-1) -1 = 0. Solving for x gives us x = +3.
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