Which species has the smaller bond angle, H3O+ or H2O? Explain.

Video transcript

Hi everyone here we have a question asking us between sulfur dioxide and sulfur trioxide, which compound is expected to have a smaller bond angle, So let's draw our leWIS structures of each. So for sulfur dioxide we have sulfur in the middle with one lone pair And double bonded to two oxygen's with three lone pairs. And for sulfur trioxide we have sulfur in the middle, double bonded to three oxygen's, one with 2 lone pairs, And the other two with 3 lone pairs lone pairs on the central atom, pushed the bonds away from it, making the bonds closer together and having smaller angles. Both sulfur central atoms have three electron domains. But due to the lone pair, sulfur dioxide will have the smaller bond angle, and that is our final answer. Thank you for watching. Bye.