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Question
Assign oxidation numbers to the underlined element in the following species:
NaHSO4
Solution
| +1 | +1 | x | -2 |
| Na | H | S | O4 |
Then, we have
1(+1) + 1(+1) + 1(x) + 4(-2) = 0
⇒ 1 + 1 + x - 8 = 0
⇒ x = + 6
Hence, the oxidation number of S is + 6.
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