How can I determine the oxidation number of the bolded atom of the following compound? HS

Anonymous
timer Asked: Oct 31st, 2015
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Question Description

Determine the oxidation number of the bolded atom of the following compound.

HSO4-

Oxidation Number Rules

Tutor Answer

njonjo
School: Cornell University

Thank you for the opportunity to help you with your question!

+6: oxygen in compounds always has a formal oxidation number of -2 except  in peroxides, and hydrogen  has a formal oxidation number of +1. 

S must therefore have a value of +6 in this acid anion, to result in the total of -8 from four oxygen atoms in the substance  and the +1 from hydrogen having a total charge of -1 for the acid anion.

Please let me know if you need any clarification. I'm always happy to answer your questions.

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Anonymous
Tutor went the extra mile to help me with this essay. Citations were a bit shaky but I appreciated how well he handled APA styles and how ok he was to change them even though I didnt specify. Got a B+ which is believable and acceptable.

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