Write the complete mechanism of bromination of benzaldehyde by a mixture of hydrobromic acid and potassium bromate in acetic acid. Consider bromination at the 4 and 3 position (para and meta), and explain, by showing the relevant resonance structures, why bromination preferentially takes place at the meta position.

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

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the ratio of the conjugate base to the acid required to attain the desired ph.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.