Does this mean that SO2 grabs an Oxygen out of every second OH(-) group present in the solution?

Answer 1

Probably not. It means that the sulfur oxides are the acid anhydrides of common acids.

So what is an acid anhydride? It is the acid LESS the elements of water, #H_2O#. The acid anhydride of sulfuric acid #H_2SO_4# is #SO_3(g)#, the acid anhydride of sulfurous acid, #H_2SO_3# is #SO_2(g)#. Of course, these are formalisms, but they do help us to rationalize reactivity as an acid-base phenomenon when the sulfur oxides are dissolved in water.

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Answer 2

Avery Adams

No, that is not correct.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.