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Which of the following salts is basic? Species Kp NH3 1.8 x 10-5 Species Ka HIO3 1.6 x 10-1 HCIO2 1.2 x 10-2 HNO2 4.0 x 10-4 HC2H3O2 1.8 × 10-5 HCN 6.2 x 10-10 O NHẠCIO2 O NH,C2H3O2 O NH4IO3 O NHẠNO2 O NHẠCN

Which of the following salts is basic? Species Kp NH3 1.8 x 10-5 Species Ka HIO3 1.6 x 10-1 HCIO2 1.2 x 10-2 HNO2 4.0 x 10-4 HC2H3O2 1.8 × 10-5 HCN 6.2 x 10-10 O NHẠCIO2 O NH,C2H3O2 O NH4IO3 O NHẠNO2 O NHẠCN

Chemistry
Chemistry
10th Edition
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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**Which of the following salts is basic?** **Species** - **NH₃** - \( K_b = 1.8 \times 10^{-5} \) **Acidic Species with \(K_a\) Values:** - **HIO₃** - \( K_a = 1.6 \times 10^{-1} \) - **HClO₂** - \( K_a = 1.2 \times 10^{-2} \) - **HNO₂** - \( K_a = 4.0 \times 10^{-4} \) - **HC₂H₃O₂** - \( K_a = 1.8 \times 10^{-5} \) - **HCN** - \( K_a = 6.2 \times 10^{-10} \) **Options:** - ☐ NH₄ClO₂ - ☐ NH₄C₂H₃O₂ - ☐ NH₄IO₃ - ☐ NH₄NO₂ - ☐ NH₄CN **Explanation:** The table presents a list of acid and base species with their respective \(K_a\) (acid dissociation constant) and \(K_b\) (base dissociation constant) values. The question asks which salt is basic. Typically, a salt will display basic properties if its conjugate base is stronger (or the acid is weaker). Here, check \(K_a\) and \(K_b\) values to determine the most basic salt option.
Transcribed Image Text:**Which of the following salts is basic?** **Species** - **NH₃** - \( K_b = 1.8 \times 10^{-5} \) **Acidic Species with \(K_a\) Values:** - **HIO₃** - \( K_a = 1.6 \times 10^{-1} \) - **HClO₂** - \( K_a = 1.2 \times 10^{-2} \) - **HNO₂** - \( K_a = 4.0 \times 10^{-4} \) - **HC₂H₃O₂** - \( K_a = 1.8 \times 10^{-5} \) - **HCN** - \( K_a = 6.2 \times 10^{-10} \) **Options:** - ☐ NH₄ClO₂ - ☐ NH₄C₂H₃O₂ - ☐ NH₄IO₃ - ☐ NH₄NO₂ - ☐ NH₄CN **Explanation:** The table presents a list of acid and base species with their respective \(K_a\) (acid dissociation constant) and \(K_b\) (base dissociation constant) values. The question asks which salt is basic. Typically, a salt will display basic properties if its conjugate base is stronger (or the acid is weaker). Here, check \(K_a\) and \(K_b\) values to determine the most basic salt option.
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Step 1

Kb indicates base dissociation constant. This value decide the nature of base. Higher the value of Kb, stronger is the base.

Similarly, Ka indicates acid dissociation constant which decides the nature of acid. Higher the value of Ka, stronger is the acid.

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