l 4 4% 16:49 20192020 CHEM 111 Tutorial set 2 - Read-only Sign in to edit and save changes to this f... 10. Determine whether aqueous solutions of each of these salts are acidic, basic, or neutral: (a) Ba(CH2COO)2. (b) NH4CI, (c) CHNH3Br, (d) KNO3, (e) AI(CIO4)s 11. Calculate the pH of a 0.10 M KNO2 solution. K.(HNO2)=4.5 x104 12. The solubility of CO2 in water at 25 °C and 0.1 atm is 0.0037 M. CO2+H2OH2C3. What is the pH of the solution of H2CO;? (Kal 4.3x107 and Ka2 5.6x10 13. (a) Given that NO:" is a stronger conjugate base than NO;', which is the stronger acid nitric acid, HNOs, or nitrous acid, HNO2 (b) Predict the relative strengths of the oxoacids in each of the following groups: (a) HСIО, НВЮ, and нIO () HNO, and HNO? 14. Write the dissociation reaction and the corresponding K. equilibrium expressions (а) НCN (b) НОСНs (c) CoHsNH3 15. Calculate the pH of each of the following solutions: а. 2.8 х 10-4 м Вa(ОН)2 b. 5.2 х 10-4 м HNO, 16. (a) What is the pka of formic acid that is 0.53% ionised in 0.050 M solution. (b) A 0.050 M of solution of anilinium chloride, CaH5NH3Cl has a pH of 3.01. Calculate the K for the anilinium ions, the percentage hydrolysis of anilinium ions and the k for the aniline. [Aniline (CsHsNH2)] 17. CO2 saturated in an aqueous solution in which the concentration of H2CO3 is 0.034 M. Given that the Kal =4.2x 10-7 and K2=4.8x 10-1" a. Calculate the equilibrium concentration of H2CO3, HCO;', Co2-, H20* b. The pH of the solution c. Determine the equilibrium concentration of CO32 after addition of 0.01 M HCl C. Obuah; J.J harrison; M. Chama; SA Dogbe; L Hamenu; R. Owoare; M.K. Ainooson; R. Amewu טך
l 4 4% 16:49 20192020 CHEM 111 Tutorial set 2 - Read-only Sign in to edit and save changes to this f... 10. Determine whether aqueous solutions of each of these salts are acidic, basic, or neutral: (a) Ba(CH2COO)2. (b) NH4CI, (c) CHNH3Br, (d) KNO3, (e) AI(CIO4)s 11. Calculate the pH of a 0.10 M KNO2 solution. K.(HNO2)=4.5 x104 12. The solubility of CO2 in water at 25 °C and 0.1 atm is 0.0037 M. CO2+H2OH2C3. What is the pH of the solution of H2CO;? (Kal 4.3x107 and Ka2 5.6x10 13. (a) Given that NO:" is a stronger conjugate base than NO;', which is the stronger acid nitric acid, HNOs, or nitrous acid, HNO2 (b) Predict the relative strengths of the oxoacids in each of the following groups: (a) HСIО, НВЮ, and нIO () HNO, and HNO? 14. Write the dissociation reaction and the corresponding K. equilibrium expressions (а) НCN (b) НОСНs (c) CoHsNH3 15. Calculate the pH of each of the following solutions: а. 2.8 х 10-4 м Вa(ОН)2 b. 5.2 х 10-4 м HNO, 16. (a) What is the pka of formic acid that is 0.53% ionised in 0.050 M solution. (b) A 0.050 M of solution of anilinium chloride, CaH5NH3Cl has a pH of 3.01. Calculate the K for the anilinium ions, the percentage hydrolysis of anilinium ions and the k for the aniline. [Aniline (CsHsNH2)] 17. CO2 saturated in an aqueous solution in which the concentration of H2CO3 is 0.034 M. Given that the Kal =4.2x 10-7 and K2=4.8x 10-1" a. Calculate the equilibrium concentration of H2CO3, HCO;', Co2-, H20* b. The pH of the solution c. Determine the equilibrium concentration of CO32 after addition of 0.01 M HCl C. Obuah; J.J harrison; M. Chama; SA Dogbe; L Hamenu; R. Owoare; M.K. Ainooson; R. Amewu טך
Chapter14: Acids And Bases
Section: Chapter Questions
Problem 10RQ: For oxyacids, how does acid strength depend on a. the strength of the bond to the acidic hydrogen...
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![l 4 4% 16:49
20192020 CHEM 111 Tutorial set 2 - Read-only
Sign in to edit and save changes to this f...
10. Determine whether aqueous solutions of each of these salts are acidic, basic, or neutral:
(a) Ba(CH2COO)2. (b) NH4CI, (c) CHNH3Br, (d) KNO3, (e) AI(CIO4)s
11. Calculate the pH of a 0.10 M KNO2 solution. K.(HNO2)=4.5 x104
12. The solubility of CO2 in water at 25 °C and 0.1 atm is 0.0037 M.
CO2+H2OH2C3. What is the pH of the solution of H2CO;?
(Kal 4.3x107 and Ka2 5.6x10
13. (a) Given that NO:" is a stronger conjugate base than NO;', which is the stronger acid
nitric acid, HNOs, or nitrous acid, HNO2
(b) Predict the relative strengths of the oxoacids in each of the following groups: (a)
HСIО, НВЮ, and нIO () HNO, and HNO?
14. Write the dissociation reaction and the corresponding K. equilibrium expressions
(а) НCN
(b) НОСНs
(c) CoHsNH3
15. Calculate the pH of each of the following solutions:
а. 2.8 х 10-4 м Вa(ОН)2
b. 5.2 х 10-4 м HNO,
16. (a) What is the pka of formic acid that is 0.53% ionised in 0.050 M solution.
(b) A 0.050 M of solution of anilinium chloride, CaH5NH3Cl has a pH of 3.01. Calculate
the K for the anilinium ions, the percentage hydrolysis of anilinium ions and the k
for the aniline. [Aniline (CsHsNH2)]
17. CO2 saturated in an aqueous solution in which the concentration of H2CO3 is 0.034 M.
Given that the Kal =4.2x 10-7 and K2=4.8x 10-1"
a. Calculate the equilibrium concentration of H2CO3, HCO;', Co2-, H20*
b. The pH of the solution
c. Determine the equilibrium concentration of CO32 after addition of 0.01 M HCl
C. Obuah; J.J harrison; M. Chama; SA Dogbe; L Hamenu; R. Owoare; M.K. Ainooson; R. Amewu
טך](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe09128e8-6eb3-4016-856c-ee4ee67523cd%2F8613fec8-9bd4-4f3f-bb67-467c1149b23d%2Fpvkomyd.jpeg&w=3840&q=75)
Transcribed Image Text:l 4 4% 16:49
20192020 CHEM 111 Tutorial set 2 - Read-only
Sign in to edit and save changes to this f...
10. Determine whether aqueous solutions of each of these salts are acidic, basic, or neutral:
(a) Ba(CH2COO)2. (b) NH4CI, (c) CHNH3Br, (d) KNO3, (e) AI(CIO4)s
11. Calculate the pH of a 0.10 M KNO2 solution. K.(HNO2)=4.5 x104
12. The solubility of CO2 in water at 25 °C and 0.1 atm is 0.0037 M.
CO2+H2OH2C3. What is the pH of the solution of H2CO;?
(Kal 4.3x107 and Ka2 5.6x10
13. (a) Given that NO:" is a stronger conjugate base than NO;', which is the stronger acid
nitric acid, HNOs, or nitrous acid, HNO2
(b) Predict the relative strengths of the oxoacids in each of the following groups: (a)
HСIО, НВЮ, and нIO () HNO, and HNO?
14. Write the dissociation reaction and the corresponding K. equilibrium expressions
(а) НCN
(b) НОСНs
(c) CoHsNH3
15. Calculate the pH of each of the following solutions:
а. 2.8 х 10-4 м Вa(ОН)2
b. 5.2 х 10-4 м HNO,
16. (a) What is the pka of formic acid that is 0.53% ionised in 0.050 M solution.
(b) A 0.050 M of solution of anilinium chloride, CaH5NH3Cl has a pH of 3.01. Calculate
the K for the anilinium ions, the percentage hydrolysis of anilinium ions and the k
for the aniline. [Aniline (CsHsNH2)]
17. CO2 saturated in an aqueous solution in which the concentration of H2CO3 is 0.034 M.
Given that the Kal =4.2x 10-7 and K2=4.8x 10-1"
a. Calculate the equilibrium concentration of H2CO3, HCO;', Co2-, H20*
b. The pH of the solution
c. Determine the equilibrium concentration of CO32 after addition of 0.01 M HCl
C. Obuah; J.J harrison; M. Chama; SA Dogbe; L Hamenu; R. Owoare; M.K. Ainooson; R. Amewu
טך
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