Chloride for both Cl and Cl2

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RaquelAvalos1K
Posts: 35
Joined: Fri Sep 26, 2014 2:02 pm

Chloride for both Cl and Cl2

Postby RaquelAvalos1K » Sun Nov 30, 2014 7:07 pm

Hey!

So do we call Cl and Cl2 when outside the brackets chloride? Even though Cl2 is called chlorine?

I'm getting confused when it comes to writing a formula for a name that has chloride in it. Is chloride just an overarching name for any amount of Cl? So the number of Cl just depends on the oxidation number of the TM or rest of the complex?


For example, in our Quiz 3 Prep (last quiz in wkbk), #5 reads:
"What is the chemical formula for triammineaquaplatinum(IV) chloride"
Since platinum has an oxidation number of 4, does that mean there are 4 Cl (Cl4) so the charges cancel out between the Pt and Cl4 (since the ligands are neutral)?

Thank you!

Eduardo Torres 3G
Posts: 13
Joined: Fri Sep 26, 2014 2:02 pm

Re: Chloride for both Cl and Cl2

Postby Eduardo Torres 3G » Sun Nov 30, 2014 7:36 pm

Since Cl is the anion of the complex when it is outside the brackets, it is called chloride regardless of the number. For example, NaCl is sodium chloride and MgCl2 is magnesium chloride. The amount is implied through the charge of the cation (you use as many as you need to make the molecule neutral). As for the quiz prep problem, it would be Cl4 because that would make the compound neutral. I hope this clears things up.

RaquelAvalos1K
Posts: 35
Joined: Fri Sep 26, 2014 2:02 pm

Re: Chloride for both Cl and Cl2

Postby RaquelAvalos1K » Sun Nov 30, 2014 7:41 pm

Awesome! Thank you, Eduardo!!


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