Question

Q5. Sulfate and phosphate are polyatomic anions found in many ionic salts that may dissolve in

water.

(a) Draw the Lewis structures of water, sulfate, and phosphate, making sure to include any formal charges on atoms. Note that phosphorus and sulfur from row 3 of the periodic table do not obey the octet rule – they will end up sharing 10, and 12 electrons respectively.

[Insert image of your drawn structures here]

(b) What shape are each of these molecules according to VSPER?

ANSWER:

WATER: SULFATE: PHOSPHATE:

Shape: ___________________ Shape: ___________________ Shape: ___________________

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