23. Ba- 137.2, Ca = 40, S-32, Cl-35.5, Br-80, Sr-88, 1-1 Na 1. Explain the following: a). Strength of an acid b). Percent fonization c). Titration curve dy. Equivaulence point 2. In each of the reactions, identify the ewisacil a
23. Ba- 137.2, Ca = 40, S-32, Cl-35.5, Br-80, Sr-88, 1-1 Na 1. Explain the following: a). Strength of an acid b). Percent fonization c). Titration curve dy. Equivaulence point 2. In each of the reactions, identify the ewisacil a
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
![Department of Chemistry
University ofr Ghana
School of Physical & Mathematical Science
Equitibria in aqueous solutions
(H=1, C-12, N=14, 0=16, F-19, Na = 23, Ba = 137.2, Ca = 40, S-32, CI-35.5, Br-80, Sr-88, 1=1271
1. Explain the following:
a). Strength of an acid b). Percent fonization c). Titration curve dy. Equivalence point
2. In each of the reactions, identify the Lewis acid and base:
a) AICIs (aq)+ CI (aq)- AICIlrlaq)
b) Zn(OH) (aq)+ 20H (ag)
Arrange the substances in each of the following sets in order of incrensing acid strength.
a) SiHa, PH3 H2S, HCI b). HCIOs, HBRO3, HIO; c). NH3, CH NH2 d). HBr, HF, HCI, HI
4. Arrange the substances in each of the following sets in order of increasing strength of Prønsted-
Lowry base.
a). NH3, NH2
5. How are acidic, basic and neutral solitions in water defined in terms of;
a). [HO*] and [OH]
6 Calculate the volume of 0.025 M HCIO4 solution that would just neutralize 30.0 ml of 0.0100 M
1DaOHa solution.
-Zn(OH), (aq)
3.
b). OH, HS,
C). Cl, I
d). HS, S?
b). pH
7 Toreach uf the following reactions, identjv the acici, the baye, conjirgite be se and conjügate peid.
8) lHOCI+ CalHsNH -OCT+CoflsN
5). H2C HONHS -- HO +HONHE
8. At 40°C the value of Kw is 2.92 x1014.
a) Calculate the [H'] and [OH] in pure water at 40°C.
b) What is the pH of pure water at 40°C.
c) If the hydroxide ion concentration in a solution is 0.10 M, What is the pH of pure water at
40°C?
9 A typical aspirin tablet contains 32 mg oi the monoprotic acid; acetylsalicylic acid, CoH,CO.H.
Calculate the pil of a solution that is prepared by dissolving two aspirin tablets in 237 ml of
solution. Assume the aspirin tablets are pure acetylsalicylic acid. Ka for CoH7CO.H is 3.3 x 10
10. Celculate the pH of 100 ml of 1.5 M HI solution and the pH after it is diluted with water to 565
ml.
11. A 0.020 M solution of anilinium chloride. CoH&NH3CI, has a pH of 3.16. Caiculate K, for anilinium
ions, the percent hydrolysis of anilinium ions and the K for aniline, CoHsNl12.
12. What pH of calcium hydroxide solation will you get if you dissolve 1.58 g of the solid calcium
hydroxide in water to make up to 850 m of solution?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe45ff3b1-3721-43dc-b1d6-1c5d77817334%2F6ca81395-840e-4907-ada0-c45eb44c654d%2Fwix7wm6_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Department of Chemistry
University ofr Ghana
School of Physical & Mathematical Science
Equitibria in aqueous solutions
(H=1, C-12, N=14, 0=16, F-19, Na = 23, Ba = 137.2, Ca = 40, S-32, CI-35.5, Br-80, Sr-88, 1=1271
1. Explain the following:
a). Strength of an acid b). Percent fonization c). Titration curve dy. Equivalence point
2. In each of the reactions, identify the Lewis acid and base:
a) AICIs (aq)+ CI (aq)- AICIlrlaq)
b) Zn(OH) (aq)+ 20H (ag)
Arrange the substances in each of the following sets in order of incrensing acid strength.
a) SiHa, PH3 H2S, HCI b). HCIOs, HBRO3, HIO; c). NH3, CH NH2 d). HBr, HF, HCI, HI
4. Arrange the substances in each of the following sets in order of increasing strength of Prønsted-
Lowry base.
a). NH3, NH2
5. How are acidic, basic and neutral solitions in water defined in terms of;
a). [HO*] and [OH]
6 Calculate the volume of 0.025 M HCIO4 solution that would just neutralize 30.0 ml of 0.0100 M
1DaOHa solution.
-Zn(OH), (aq)
3.
b). OH, HS,
C). Cl, I
d). HS, S?
b). pH
7 Toreach uf the following reactions, identjv the acici, the baye, conjirgite be se and conjügate peid.
8) lHOCI+ CalHsNH -OCT+CoflsN
5). H2C HONHS -- HO +HONHE
8. At 40°C the value of Kw is 2.92 x1014.
a) Calculate the [H'] and [OH] in pure water at 40°C.
b) What is the pH of pure water at 40°C.
c) If the hydroxide ion concentration in a solution is 0.10 M, What is the pH of pure water at
40°C?
9 A typical aspirin tablet contains 32 mg oi the monoprotic acid; acetylsalicylic acid, CoH,CO.H.
Calculate the pil of a solution that is prepared by dissolving two aspirin tablets in 237 ml of
solution. Assume the aspirin tablets are pure acetylsalicylic acid. Ka for CoH7CO.H is 3.3 x 10
10. Celculate the pH of 100 ml of 1.5 M HI solution and the pH after it is diluted with water to 565
ml.
11. A 0.020 M solution of anilinium chloride. CoH&NH3CI, has a pH of 3.16. Caiculate K, for anilinium
ions, the percent hydrolysis of anilinium ions and the K for aniline, CoHsNl12.
12. What pH of calcium hydroxide solation will you get if you dissolve 1.58 g of the solid calcium
hydroxide in water to make up to 850 m of solution?
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