acid and base with the same pH power
Answers
Answer:
Acid and Base Strength -
All acids and bases do not ionize or dissociate to the same extent. This leads to the statement that acids and bases are not all of equal strength in producing H+ and OH- ions in solution. The terms "strong" and "weak" give an indication of the strength of an acid or base.
Answer:
Explanation:
The pH of a solution depends on the strength of the acid or base in the solution. Measurements of the pH of dilute solutions are therefore good indicators of the relative strengths of acids and bases. Values of the pH of 0.10 M solutions of a number of common acids and bases are given in the table below.
pH of 0.10 M Solutions of Common Acids and Bases
Compound pH
HCl (hydrochloric acid) 1.1
H2SO4 (sulfuric acid) 1.2
NaHSO4 (sodium hydrogen sulfate) 1.4
H2SO3 (sulfurous acid) 1.5
H3PO4 (phosphoric acid) 1.5
HF (hydrofluoric acid) 2.1
CH3CO2H (acetic acid) 2.9
H2CO3 (carbonic acid) 3.8 (saturated solution)
H2S (hydrogen sulfide) 4.1
NaH2PO4 (sodium dihydrogen phosphate) 4.4
NH4Cl (ammonium chloride) 4.6
HCN (hydrocyanic acid) 5.1
Na2SO4 (sodium sulfate) 6.1
NaCl (sodium chloride) 6.4
NaCH3CO2 (sodium acetate) 8.4
NaHCO3 (sodium bicarbonate) 8.4
Na2HPO4 (sodium hydrogen phosphate) 9.3
Na2SO3 (sodium sulfite) 9.8
NaCN (sodium cyanide) 11.0
NH3 (aqueous ammonia) 11.1
Na2CO3 (sodium carbonate) 11.6
Na3PO4 (sodium phosphate) 12.0
NaOH (sodium hydroxide, lye) 13.0