Identify each of the following as a strong or weak acid

Question

S2-, SO32-, Cl- ,Br-,NO3-, ClO4-, CO32-, and PO43-

Answer 1

Answering the question: Identify each of the following as a strong or weak base

S^2–, SO₃^2–, Cl^– ,Br^–, NO₃^–, ClO₄^–, CO₃^2–, and PO₄^3–

weak bases

Cl^– ,Br^–, NO₃^–, and ClO₄^–

These correspond to very strong conjugate acids

HCl, HBr, HNO₃, and HClO₄

all of which have K_a values much greater than 1

strong bases

S^2–, SO₃^2–, CO₃^2–, and PO₄^3–

These correspond to weak conjugate acids

HS^–, HSO₃^–, HCO₃^–, and HPO₄^2–

all of which have K_a values much less than 1