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Topic: strength of acid  (Read 1987 times)

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Offline luketapis

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strength of acid
« on: April 17, 2012, 08:26:36 PM »
Hi
I have a question about acids strength
So these are my acids:

a: (OH)2SO2
b: (OH)2SO
c: H2S

I assume that (OH)2SO2 > (OH)2SO, because I checked the oxidation state of sulphur for both molecules. Oxidation state for molecule "a" is 6 and oxidation state for molecule "b" is 4.
Sulphur is in 6th group so...6>4 but how to relate that to  H2S?
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Offline fledarmus

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Re: strength of acid
« Reply #1 on: April 17, 2012, 08:43:53 PM »
What atom is your hydrogen attached to in a, b, and c?
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Offline luketapis

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Re: strength of acid
« Reply #2 on: April 18, 2012, 08:59:08 AM »
a: O
b: O
c: S
Do you mean I have to take into account electronegativity?
a and b > c ??
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Offline fledarmus

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Re: strength of acid
« Reply #3 on: April 18, 2012, 01:22:24 PM »
exactly
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