PH Of Common Acids And Bases

Có thể bạn quan tâm

pH of Common Acids and Bases

Calculated pH values of common acids and bases for 1, 10, and 100 mmol/L (valid for standard conditions at 25, 1 atm; acidity constants are taken from here):

• acids:	sorted by pH or formula
• bases:	sorted by pH or formula
• organics:	organic acids and salts

• other reactions: Free software (Example) Demo: Online pH-Calculator

pH of Acids - Sorted by pH

Acid	Name	1 mM	10 mM	100 mM
H2SeO4	selenic acid	2.74	1.83	0.97
H2SO4	sulfuric acid	2.75	1.87	1.01
HI	hydroiodic acid	3.01	2.04	1.08
HBr	hydrobromic acid	3.01	2.04	1.08
HCl	hydrochloric acid	3.01	2.04	1.08
HNO3	nitric acid	3.01	2.04	1.08
H3PO4	orthophosphoric acid	3.06	2.26	1.63
H3AsO4	arsenic acid	3.08	2.31	1.70
H2SeO3	selenous acid	3.15	2.47	1.90
H2CrO4	chromic acid	3.03	2.33	2.06
H3Citrate	citric acid, C6H8O7	3.24	2.62	2.08
HF	hydrofluoric acid	3.27	2.65	2.12
HNO2	nitrous acid	3.28	2.67	2.13
HCyanate	isocyanic acid, HOCN	3.35	2.76	2.23
HFormate	formic acid, CH2O2 (methanoic acid)	3.47	2.91	2.38
H2Se	hydrogen selenide	3.49	2.93	2.41
H2MoO4	molybdic acid	3.46	2.94	2.43
HLactate	lactic acid, C3H6O3 (milk acid)	3.51	2.96	2.44
HAcetate	acetic acid, C2H4O2 (ethanoic acid)	3.91	3.39	2.88
H2CO3	carbonic acid	4.68	4.18	3.68
H2S	hydrogen sulfide	4.97	4.47	3.97
H3AsO3	arsenious acid	6.07	5.58	5.09
HCyanide	hydrocyanic acid, HCN	6.11	5.62	5.12
H3BO3	boric acid	6.12	5.62	5.12
H4SiO4	silicic acid	6.40	5.91	5.42
H4SiO4	silicic acid (with SiO2(a) precipitation)	6.40	6.26	6.26

pH of Acids - Sorted by Formula

Acid	Name	1 mM	10 mM	100 mM
H2CO3	carbonic acid	4.68	4.18	3.68
H2CrO4	chromic acid	3.03	2.33	2.06
H2MoO4	molybdic acid	3.46	2.94	2.43
H2S	hydrogen sulfide	4.97	4.47	3.97
H2Se	hydrogen selenide	3.49	2.93	2.41
H2SeO3	selenous acid	3.15	2.47	1.90
H2SeO4	selenic acid	2.74	1.83	0.97
H2SO4	sulfuric acid	2.75	1.87	1.01
H3AsO3	arsenious acid	6.07	5.58	5.09
H3AsO4	arsenic acid	3.08	2.31	1.70
H3BO3	boric acid	6.12	5.62	5.12
H3Citrate	citric acid, C6H8O7	3.24	2.62	2.08
H3PO4	orthophosphoric acid	3.06	2.26	1.63
H4SiO4	silicic acid	6.40	5.91	5.42
H4SiO4	silicic acid (with SiO2(a) precipitation)	6.40	6.26	6.26
HAcetate	acetic acid, C2H4O2 (ethanoic acid)	3.91	3.39	2.88
HBr	hydrobromic acid	3.01	2.04	1.08
HCl	hydrochloric acid	3.01	2.04	1.08
HCyanate	isocyanic acid, HOCN	3.35	2.76	2.23
HCyanide	hydrocyanic acid, HCN	6.11	5.62	5.12
HF	hydrofluoric acid	3.27	2.65	2.12
HFormate	formic acid, CH2O2 (methanoic acid)	3.47	2.91	2.38
HI	hydroiodic acid	3.01	2.04	1.08
HLactate	lactic acid, C3H6O3 (milk acid)	3.51	2.96	2.44
HNO2	nitrous acid	3.28	2.67	2.13
HNO3	nitric acid	3.01	2.04	1.08

pH of Bases - Sorted by pH

The limited solubility of hydroxides is taken into account (as indicated by footnotes in the last column).

Base	Name	1 mM	10 mM	100 mM
Ba(OH)2	barium hydroxide	11.27	12.22	13.08	1
Sr(OH)2	strontium hydroxide	11.27	12.22	13.09
NaOH	sodium hydroxide	10.98	11.95	12.88
KOH	potassium hydroxide (caustic potash)	10.98	11.95	12.88
Na2SiO3	sodium metasilicate	11.00	11.91	12.62
Ca(OH)2	calcium hydroxide (lime, CaO:H2O)	11.27	12.20	12.46	2
Na3PO4	trisodium phosphate	10.95	11.71	12.12
K2CO3	potassium carbonate	10.52	11.00	11.36
Na2CO3	sodium carbonate (soda ash)	10.52	10.97	11.26
NH4OH	ammonium hydroxide (NH3:H2O)	10.09	10.61	11.12
Mg(OH)2	magnesium hydroxide (MgO:H2O)	10.40	10.40	10.40	3
CaCO3	calcium carbonate (calcite)	9.91	9.91	9.91	4
Fe(OH)2	iron(II) hydroxide (ferrous hydroxide)	9.45	9.45	9.45	5
Cd(OH)2	cadmium hydroxide	9.36	9.36	9.36	6
Na2B4O7	sodium borate (borax)	9.21	9.17	9.05
Co(OH)2	cobalt(II) hydroxide	9.15	9.15	9.15	7
Zn(OH)2	zinc hydroxide	8.88	8.88	8.88	8
Ni(OH)2	nickel(II) hydroxide	8.37	8.37	8.37	9
KAcetate	potassium acetate (CH3COOK)	7.87	8.33	8.75
NaAcetate	sodium acetate (CH3COONa)	7.87	8.33	8.75
KHCO3	potassium hydrogen carbonate	8.27	8.25	8.13
NaHCO3	sodium hydrogen carbonate	8.27	8.22	8.02
Be(OH)2	beryllium hydroxide	7.90	7.90	7.90	10
Cu(OH)2	copper(II) hydroxide	7.69	7.69	7.69	11
Pb(OH)2	lead(II) hydroxide	7.54	7.54	7.54	12
Cr(OH)3	chromium(III)hydroxide	7.04	7.04	7.04	13
Hg(OH)2	mercury(II) hydroxide	7.03	7.03	7.03	14

pH of Bases - Sorted by Formula

Base	Name	1 mM	10 mM	100 mM
Ba(OH)2	barium hydroxide	11.27	12.22	13.08	1
Be(OH)2	beryllium hydroxide	7.90	7.90	7.90	10
Ca(OH)2	calcium hydroxide (lime, CaO:H2O)	11.27	12.20	12.46	2
CaCO3	calcium carbonate (calcite)	9.91	9.91	9.91	4
Cd(OH)2	cadmium hydroxide	9.36	9.36	9.36	6
Co(OH)2	cobalt(II) hydroxide	9.15	9.15	9.15	7
Cr(OH)3	chromium(III) hydroxide	7.04	7.04	7.04	13
Cu(OH)2	copper(II) hydroxide	7.69	7.69	7.69	11
Fe(OH)2	iron(II) hydroxide (ferrous hydroxide)	9.45	9.45	9.45	5
Hg(OH)2	mercury(II) hydroxide	7.03	7.03	7.03	14
K2CO3	potassium carbonate	10.52	11.00	11.36
KAcetate	potassium acetate (CH3COOK)	7.87	8.33	8.75
KHCO3	potassium hydrogen carbonate	8.27	8.25	8.13
KOH	potassium hydroxide (caustic potash)	10.98	11.95	12.88
Mg(OH)2	magnesium hydroxide (MgO:H2O)	10.40	10.40	10.40	3
Na2B4O7	sodium borate (borax)	9.21	9.17	9.05
Na2CO3	sodium carbonate (soda ash)	10.52	10.97	11.26
Na2SiO3	sodium metasilicate	11.00	11.91	12.62
Na3PO4	trisodium phosphate	10.95	11.71	12.12
NaAcetate	sodium acetate (CH3COONa)	7.87	8.33	8.75
NaHCO3	sodium hydrogen carbonate	8.27	8.22	8.02
NaOH	sodium hydroxide	10.98	11.95	12.88
NH4OH	ammonium hydroxide (NH3:H2O)	10.09	10.61	11.12
Ni(OH)2	nickel(II) hydroxide	8.37	8.37	8.37	9
Pb(OH)2	lead(II) hydroxide	7.54	7.54	7.54	12
Sr(OH)2	strontium hydroxide	11.27	12.22	13.09
Zn(OH)2	zinc hydroxide	8.88	8.88	8.88	8

Remarks & Footnotes

Hydroxides are strong bases but have low solubility which confines the pH to an upper bound. This is achieved by including the corresponding solid phase into the equilibrium calculation.

in equilibrium with solid phase Ba(OH)2:8H2O ↩ ↩2
in equilibrium with solid phase Portlandite ↩ ↩2
in equilibrium with solid phase Brucite ↩ ↩2
in equilibrium with solid phase Calcite ↩ ↩2
in equilibrium with solid phase Fe(OH)2 ↩ ↩2
in equilibrium with solid phase Cd(OH)2 ↩ ↩2
in equilibrium with solid phase Co(OH)2 ↩ ↩2
in equilibrium with solid phase Zn(OH)2-c ↩ ↩2
in equilibrium with solid phase Ni(OH)2 ↩ ↩2
in equilibrium with solid phase Be(OH)2 ↩ ↩2
in equilibrium with solid phase Cu(OH)2 ↩ ↩2
in equilibrium with solid phase Pb(OH)2 ↩ ↩2
in equilibrium with solid phase Cr(OH)3(a) ↩ ↩2
in equilibrium with solid phase Hg(OH)2 ↩ ↩2

[last modified: 2021-01-17] 1 2 Next › Last »

Từ khóa » H2s04 Ph

PH Of Common Acids And Bases

PH Of Sulfuric Acid - Online PH Calculator For H 2 SO 4 Acid

What Is The PH Of This H2SO4 Solution? - Chemistry Stack Exchange

Example - Calculating The PH Of A Strong Acid

PH Of Sulfuric Acid - YouTube

Diprotic Acid Sulfuric Acid (H₂SO₄) PH Problem - YouTube

What Is The PH Of Sulfuric Acid? - Quora

Sulfuric Acid | H2SO4 - PubChem

Sulfuric Acid - Wikipedia

Sulfuric Acid For Use In PH Neutralization Systems

What Is Sulfuric Acid? | The Chemistry Blog - Chemicals UK

Spectroscopic Measurement Of PH In Aqueous Sulfuric Acid And ...

Sulfuric Acid 10% | 480704 - Merck Millipore

Calculated PH At 25-300 °C In A 0.5 M H2SO4 Solution.

Liên Hệ