17, Calculate the Ka of a 0.010M acid solution which is 19% ionized Group of answer choices 1.9 x 103 5.4 x 10-4 5.4 x 105 1.9 x 10-3 4.5 x 10-3 4.5 x 10-4 18, Calculate [A-] and [A2-]of a 0.050 M solution of diprotic acid, H2A, with K1 = 8.5 x 10-5 and K2 = 3.39 x 10-10. Group of answer choices [A-] =2.1 x 10-5 [A2-]=3.4 x 10-10 [A-] =4.3 x 10-5 [A2-]=3.4 x 10-8 [A-] =2.1 x 10-3 [A2-]=3.4 x 10-10 [A-] =4.25 x 10-3 [A2-]=2.2 x 10-6 19,Which salts will produce acidic aqueous solutions? CaBr2 NH4Cl CoBr2 KHSO3 NaCN KClO4 Group of answer choices 3,5 5,6 3,5,6 2, 3 1, 2, 4
17, Calculate the Ka of a 0.010M acid solution which is 19% ionized Group of answer choices 1.9 x 103 5.4 x 10-4 5.4 x 105 1.9 x 10-3 4.5 x 10-3 4.5 x 10-4 18, Calculate [A-] and [A2-]of a 0.050 M solution of diprotic acid, H2A, with K1 = 8.5 x 10-5 and K2 = 3.39 x 10-10. Group of answer choices [A-] =2.1 x 10-5 [A2-]=3.4 x 10-10 [A-] =4.3 x 10-5 [A2-]=3.4 x 10-8 [A-] =2.1 x 10-3 [A2-]=3.4 x 10-10 [A-] =4.25 x 10-3 [A2-]=2.2 x 10-6 19,Which salts will produce acidic aqueous solutions? CaBr2 NH4Cl CoBr2 KHSO3 NaCN KClO4 Group of answer choices 3,5 5,6 3,5,6 2, 3 1, 2, 4
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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17, Calculate the Ka of a 0.010M acid solution which is 19% ionized
Group of answer choices
1.9 x 103
5.4 x 10-4
5.4 x 105
1.9 x 10-3
4.5 x 10-3
4.5 x 10-4
18, Calculate [A-] and [A2-]of a 0.050 M solution of diprotic acid, H2A, with K1 = 8.5 x 10-5 and K2 = 3.39 x 10-10.
Group of answer choices
[A-] =2.1 x 10-5
[A2-]=3.4 x 10-10
[A-] =4.3 x 10-5
[A2-]=3.4 x 10-8
[A-] =2.1 x 10-3
[A2-]=3.4 x 10-10
[A-] =4.25 x 10-3
[A2-]=2.2 x 10-6
19,Which salts will produce acidic aqueous solutions?
- CaBr2
- NH4Cl
- CoBr2
- KHSO3
- NaCN
- KClO4
Group of answer choices
3,5
5,6
3,5,6
2, 3
1, 2, 4
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