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12 Dec 2019
Calculate the pH change that results when 12 mL of 5.9 M NaOH is added to 763 mL of each the following solutions. (See the appendix.)
(a) pure water
(b) 0.10 M NH4Cl
(c) 0.10 M NH3
(d) a solution that is 0.10 M in each NH4+ and NH3
Acid Name ConjugateAcid Ka pKa Conjugate Base Base Name perchloric acid HClO4 >>1 < 0 ClO41- perchlorate ion hydrohalic acid HX (X=I,Br,Cl) >>1 < 0 X1- halide ion sulfuric acid H2SO4 >>1 < 0 HSO41- hydrogen sulfate ion nitric acid HNO3 >>1 < 0 NO31- nitrate ion hydronium ion H3O1+ 1.0 0.00 H2O water iodic acid HIO3 0.17 0.77 IO31- iodate ion oxalic acid H2C2O4 5.9 x 10-2 1.23 HC2O41- hydrogen oxalate ion sulfurous acid H2SO3 1.5 x 10-2 1.82 HSO31- hydrogen sulfite ion hydrogen sulfate ion HSO41- 1.2 x 10-2 1.92 SO42- sulfate ion phosphoric acid H3PO4 7.5 x 10-3 2.12 H2PO41- dihydrogen phosphate ion hydrofluoric acid HF 7.2 x 10-4 3.14 F1- fluoride ion nitrous acid HNO2 4.0 x 10-4 3.40 NO21- nitrite ion lactic acid HC3H5O3 6.4 x 10-5 3.85 C3H5O31- lactate ion formic acid HCHO2 1.8 x 10-4 3.74 CHO21- formate ion hydrogen oxalate ion HC2O41- 6.4 x 10-5 4.19 C2O42- oxalate ion hydrazoic acid HN3 1.9 x 10-5 4.72 N31- azide ion acetic acid HC2H3O2 1.8 x 10-5 4.74 C2H3O21- acetate ion carbonic acid H2CO3 4.3 x 10-7 6.37 HCO31- hydrogen carbonate ion hydrogen sulfite ion HSO31- 1.0 x 10-7 7.00 SO32- sulfite ion hydrosulfuric acid H2S 1.0 x 10-7 7.00 HS1- hydrogen sulfide ion dihydrogen phosphate ion H2PO41- 6.2 x 10-8 7.21 HPO42- hydrogen phosphate ion hypochlorous acid HClO 3.5 x 10-8 7.46 ClO1- hypochlorite ion ammonium ion NH41+ 5.6 x 10-10 9.25 NH3 ammonia hydrocyanic acid HCN 4.0 x 10-10 9.40 CN1- cyanide ion hydrogen carbonate ion HCO31- 4.7 x 10-11 10.33 CO32- carbonate ion hydrogen phosphate ion HPO42- 4.8 x 10-13 12.32 PO43- phosphate ion hydrogen sulfide ion HS1- 1.3 x 10-13 12.89 S2- sulfide ion water H2O 1.0 x 10-14 14.00 OH1- hydroxide ion ammonia NH3 <<10-14 NH21- amide ion hydroxide ion OH1- <<10-14 O2- oxide ion
Calculate the pH change that results when 12 mL of 5.9 M NaOH is added to 763 mL of each the following solutions. (See the appendix.)
(a) pure water
(b) 0.10 M NH4Cl
(c) 0.10 M NH3
(d) a solution that is 0.10 M in each NH4+ and NH3
Acid Name | ConjugateAcid | Ka | pKa | Conjugate Base | Base Name |
---|---|---|---|---|---|
perchloric acid | HClO4 | >>1 | < 0 | ClO41- | perchlorate ion |
hydrohalic acid | HX (X=I,Br,Cl) | >>1 | < 0 | X1- | halide ion |
sulfuric acid | H2SO4 | >>1 | < 0 | HSO41- | hydrogen sulfate ion |
nitric acid | HNO3 | >>1 | < 0 | NO31- | nitrate ion |
hydronium ion | H3O1+ | 1.0 | 0.00 | H2O | water |
iodic acid | HIO3 | 0.17 | 0.77 | IO31- | iodate ion |
oxalic acid | H2C2O4 | 5.9 x 10-2 | 1.23 | HC2O41- | hydrogen oxalate ion |
sulfurous acid | H2SO3 | 1.5 x 10-2 | 1.82 | HSO31- | hydrogen sulfite ion |
hydrogen sulfate ion | HSO41- | 1.2 x 10-2 | 1.92 | SO42- | sulfate ion |
phosphoric acid | H3PO4 | 7.5 x 10-3 | 2.12 | H2PO41- | dihydrogen phosphate ion |
hydrofluoric acid | HF | 7.2 x 10-4 | 3.14 | F1- | fluoride ion |
nitrous acid | HNO2 | 4.0 x 10-4 | 3.40 | NO21- | nitrite ion |
lactic acid | HC3H5O3 | 6.4 x 10-5 | 3.85 | C3H5O31- | lactate ion |
formic acid | HCHO2 | 1.8 x 10-4 | 3.74 | CHO21- | formate ion |
hydrogen oxalate ion | HC2O41- | 6.4 x 10-5 | 4.19 | C2O42- | oxalate ion |
hydrazoic acid | HN3 | 1.9 x 10-5 | 4.72 | N31- | azide ion |
acetic acid | HC2H3O2 | 1.8 x 10-5 | 4.74 | C2H3O21- | acetate ion |
carbonic acid | H2CO3 | 4.3 x 10-7 | 6.37 | HCO31- | hydrogen carbonate ion |
hydrogen sulfite ion | HSO31- | 1.0 x 10-7 | 7.00 | SO32- | sulfite ion |
hydrosulfuric acid | H2S | 1.0 x 10-7 | 7.00 | HS1- | hydrogen sulfide ion |
dihydrogen phosphate ion | H2PO41- | 6.2 x 10-8 | 7.21 | HPO42- | hydrogen phosphate ion |
hypochlorous acid | HClO | 3.5 x 10-8 | 7.46 | ClO1- | hypochlorite ion |
ammonium ion | NH41+ | 5.6 x 10-10 | 9.25 | NH3 | ammonia |
hydrocyanic acid | HCN | 4.0 x 10-10 | 9.40 | CN1- | cyanide ion |
hydrogen carbonate ion | HCO31- | 4.7 x 10-11 | 10.33 | CO32- | carbonate ion |
hydrogen phosphate ion | HPO42- | 4.8 x 10-13 | 12.32 | PO43- | phosphate ion |
hydrogen sulfide ion | HS1- | 1.3 x 10-13 | 12.89 | S2- | sulfide ion |
water | H2O | 1.0 x 10-14 | 14.00 | OH1- | hydroxide ion |
ammonia | NH3 | <<10-14 | NH21- | amide ion | |
hydroxide ion | OH1- | <<10-14 | O2- | oxide ion |
Bunny GreenfelderLv2
13 Dec 2019