What is the formal charge on the sulfur atom in sulfur trioxide #SO_3#?

Answer 1

Good question. In most treatments the formal charge is #+2#.

Sulfur assumes a #+VI# oxidation state in the acid anhydride sulfur trioxide, and of course has the same oxidation state in sulfuric acid.
#(O=)S^(2+)(-O^-)_2#

Most chemists would be content with the provided depiction.

The molecule is of course trigonal planar with #D_(3h)# symmetry.
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Answer 2

The formal charge on the sulfur atom in sulfur trioxide (SO₃) is 0.

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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.

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.

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.

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.

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