Common Acids and Their Conjugate Bases

40 vocabulary flashcards reviewing the formulas, names, and relative strengths of common acids and their conjugate base ions.

HF

Hydrogen fluoride – weak acid

HCl

Hydrogen chloride – strong acid

HBr

Hydrogen bromide – strong acid

HI

Hydrogen iodide – strong acid

H2S

Hydrogen sulfide – weak acid

HCN

Hydrogen cyanide – weak acid

HNO3

Nitric acid – strong acid

HNO2

Nitrous acid – weak acid

H2SO4

Sulfuric acid – strong acid

H2SO3

Sulfurous acid – weak acid

H3PO4

Phosphoric acid – weak acid

H3PO3

Phosphorus acid – weak acid

HClO4

Perchloric acid – strong acid

HClO3

Chloric acid – strong acid

HClO2

Chlorous acid – weak acid

HClO

Hypochlorous acid – weak acid

H2CO3

Carbonic acid – weak acid

HCOOH

Methanoic (formic) acid – weak acid

CH3COOH

Ethanoic (acetic) acid – weak acid

H2C2O4

Ethanedioic (oxalic) acid – weak acid

F−

Fluoride ion – conjugate base of HF

Cl−

Chloride ion – conjugate base of HCl

Br−

Bromide ion – conjugate base of HBr

I−

Iodide ion – conjugate base of HI

S2−

Sulfide ion – conjugate base of H2S

CN−

Cyanide ion – conjugate base of HCN

NO3−

Nitrate ion – conjugate base of HNO3

NO2−

Nitrite ion – conjugate base of HNO2

SO4^2−

Sulfate ion – conjugate base of H2SO4

SO3^2−

Sulfite ion – conjugate base of H2SO3

PO4^3−

Phosphate ion – conjugate base of H3PO4

PO3^3−

Phosphite ion – conjugate base of H3PO3

ClO4−

Perchlorate ion – conjugate base of HClO4

ClO3−

Chlorate ion – conjugate base of HClO3

ClO2−

Chlorite ion – conjugate base of HClO2

ClO−

Hypochlorite ion – conjugate base of HClO

CO3^2−

Carbonate ion – conjugate base of H2CO3

HCOO−

Methanoate (formate) ion – conjugate base of HCOOH

CH3COO−

Ethanoate (acetate) ion – conjugate base of CH3COOH

C2O4^2−

Ethanedioate (oxalate) ion – conjugate base of H2C2O4