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Chemistry: Structure and Properties | 2nd Edition | ISBN: 9780134293936 | Authors: Nivaldo J. Tro ISBN: 9780134293936 2043

Solution for problem 73 Chapter 22

Chemistry: Structure and Properties | 2nd Edition

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Chemistry: Structure and Properties | 2nd Edition | ISBN: 9780134293936 | Authors: Nivaldo J. Tro

Chemistry: Structure and Properties | 2nd Edition

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Problem 73

Sulfide \(\left(\mathrm{S}^{2-}\right)\) salts are notoriously insoluble in aqueous solution.

a. Calculate the molar solubility of nickel(II) sulfide in water. \(K_{\mathrm{sp}}(\mathrm{NiS})=3 \times 10^{-16}\)

b. Nickel(II) ions form a complex ion in the presence of ammonia with a formation constant \(\left(K_{f}\right)\) of \(2.0 \times 10^{8}\): \(\mathrm{Ni}^{2+}+6 \mathrm{NH}_{3} \rightleftharpoons\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}\). Calculate the molar solubility of NiS in \(3.0 \ \mathrm{M} \ \mathrm{NH}_{3}\).

c. Explain any differences between the answers to parts a and b.

Text Transcription:

(S^2-)

K_sp(NiS) = 3 x 10^-16

(K_f)

2.0 x 10^8

Ni^2+ + 6 NH_3 rightleftharpoons [Ni(NH_3)_6]^2+

3.0 M NH_3

Step-by-Step Solution:
Step 1 of 3

Chapter 13: Chemical Kinetics 13.1 The Rate of Reaction ­ Overview o Chemical kinetics: the area of chemistry concerned with the speed or rate, at which a chemical reaction occurs  Kinetic = movement or chance o Kinetic energy: the energy available because of the motion of an object o Reaction rate: the chance in the concentration of a reactant or a product with time (M/s)  Reactions can range from 1 millionth of a second to millions of years … it all depends o General equation:  Reactants  products  Reactants consumed + products formed  Monitoring: o Decrease in concentration of reactants o Increase in concentration of products  A  B  Rate = ­ ∆A / ∆t o Needs negative sign to make rate positive o A is decreasing & therefore a negative value  Rate = ∆B / ∆t  ∆A / B are changes in concentration (molarity) over time ­ Reaction of Molecular Bromine and Formic Acid o Br 2 HCOOH (aq)  2 Br (aq) + 2H (aq) + CO (g) 2  Bromine reddish­brown in color  As reaction takes place, concentration decreases & solution loses color

Step 2 of 3

Chapter 22, Problem 73 is Solved
Step 3 of 3

Textbook: Chemistry: Structure and Properties
Edition: 2
Author: Nivaldo J. Tro
ISBN: 9780134293936

The answer to “?Sulfide \(\left(\mathrm{S}^{2-}\right)\) salts are notoriously insoluble in aqueous solution.a. Calculate the molar solubility of nickel(II) sulfide in water. \(K_{\mathrm{sp}}(\mathrm{NiS})=3 \times 10^{-16}\)b. Nickel(II) ions form a complex ion in the presence of ammonia with a formation constant \(\left(K_{f}\right)\) of \(2.0 \times 10^{8}\): \(\mathrm{Ni}^{2+}+6 \mathrm{NH}_{3} \rightleftharpoons\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}\). Calculate the molar solubility of NiS in \(3.0 \ \mathrm{M} \ \mathrm{NH}_{3}\).c. Explain any differences between the answers to parts a and b.Text Transcription:(S^2-)K_sp(NiS) = 3 x 10^-16(K_f)2.0 x 10^8Ni^2+ + 6 NH_3 rightleftharpoons [Ni(NH_3)_6]^2+3.0 M NH_3” is broken down into a number of easy to follow steps, and 81 words. Chemistry: Structure and Properties was written by Aimee Notetaker and is associated to the ISBN: 9780134293936. The full step-by-step solution to problem: 73 from chapter: 22 was answered by Aimee Notetaker, our top Chemistry solution expert on 04/25/22, 03:51PM. Since the solution to 73 from 22 chapter was answered, more than 204 students have viewed the full step-by-step answer. This full solution covers the following key subjects: . This expansive textbook survival guide covers 23 chapters, and 130 solutions. This textbook survival guide was created for the textbook: Chemistry: Structure and Properties, edition: 2.

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