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Topic: Oxidation states  (Read 1438 times)

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Offline Helpmeplease1

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Oxidation states
« on: January 22, 2019, 07:34:55 PM »
A brown black compound of the element thallium was found to contain 89.5% Tl and 10.5% O by mass. What is the oxidation state of thallium in this compound.

I haven’t really done any oxidation states before. Could somebody explain how to work this out please? :)
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Offline Helpmeplease1

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Re: Oxidation states
« Reply #1 on: January 22, 2019, 08:14:42 PM »
Could somebody please refer me to a link or a video that would help to explain how to work this out please?
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Offline Borek

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Re: Oxidation states
« Reply #2 on: January 23, 2019, 02:44:35 AM »
First step is to find the formula from the given information. Then - you know O is (almost) always divalent.
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