Question

Question #b158f

Answer 1

Well, you should have it in your textbook Appendix. It's `K_a = 1.76 xx 10^(-5)`. What acid is undergoing this weak acid equilibrium?

(It is a carboxylic acid with two carbons, and is found in vinegar. Its anion is also written as `"C"_2"H"_3"O"_2^(-)`, a polyatomic anion you should have memorized for your solubility rules.)