Chemistry
4th Edition
ISBN: 9780078021527
Author: Julia Burdge
Publisher: McGraw-Hill Education
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Question
Chapter 22, Problem 78AP
Interpretation Introduction
Interpretation:
The larger entropy and equilibrium constant among the given reactions are to be determined.
Concept introduction:
When the
The Gibbs free energy is expressed as follows:
Here,
The relation between free energy change and standard free energy change is as:
Here,
is the gas constant, and
At equilibrium the above equation is reduced to the expression:
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[Co(H2O)6]2+ (aq) + 4 Cl-(aq )⇆ [CoCl4]2-(aq) + 6 H2O
Is this reaction endothermic or exothermic?
[Co(H2O)6]2+ (aq) + 4 Cl-(aq )⇆ [CoCl4]2-(aq) + 6 H2O
3. Does the value of the equilibrium constant (K) for this reaction increase, decrease, or
remain the same as the concentration of chloride increases? Explain your answer
incorporating the definition of an equilibrium constant.
Consider the following equation: [Ni(H2O)6]2+ + 6NH3 <----> [Ni(NH3)6]2+ +6H2O
The effects of stress on this equilibrium can be monitored by changes in color. An equilibrium mixture is blue-green (indicating both products and reactants are present).
a.) When the equilibrium mixture is heated, the color changes to bright green. Which direction has the reaction shifted? To the products, the reactants, or no shift? How did you determine this? Which is the exothermic direction of this reaction? Forward, reverse, or cannot tell?
b.) When a few drops of concentrated NH3 are added to the equilibrium mixture, the solution turns deep blue. Which direction has the reaction shifted? To the products, the reactants, or no shift? How did you determine this?
c.) Addition of concentrated HNO3 to the blue-green mixture will remove NH3 by reaction. What should happen to the color of the solution? Will it turn more blue, turn more green, or no change? Explain.
Chapter 22 Solutions
Chemistry
Ch. 22.1 - Prob. 1PPACh. 22.1 - Prob. 1PPBCh. 22.1 - Prob. 1PPCCh. 22.1 - Prob. 1CPCh. 22.1 - Prob. 2CPCh. 22.1 - Prob. 3CPCh. 22.1 - Prob. 4CPCh. 22.2 - Prob. 1PPACh. 22.2 - Prob. 1PPBCh. 22.2 - Prob. 1PPC
Ch. 22.3 - Prob. 1PPACh. 22.3 - Prob. 1PPBCh. 22.3 - Prob. 1PPCCh. 22.3 - Prob. 1CPCh. 22.3 - Prob. 2CPCh. 22.4 - Prob. 1PPACh. 22.4 - Practice Problem BUILD
Transition metal ions can...Ch. 22.4 - Prob. 1PPCCh. 22 - Prob. 1QPCh. 22 - Prob. 2QPCh. 22 - 22.3 Explain why atomic radii decrease very...Ch. 22 - Prob. 4QPCh. 22 - Write the electron configurations of the following...Ch. 22 - Prob. 6QPCh. 22 - Prob. 7QPCh. 22 - Prob. 8QPCh. 22 - Describe the interaction between a donor atom and...Ch. 22 - Prob. 10QPCh. 22 - Complete the following statements for the complex...Ch. 22 - Prob. 12QPCh. 22 - Prob. 13QPCh. 22 - Prob. 14QPCh. 22 - Prob. 15QPCh. 22 - Prob. 16QPCh. 22 - Prob. 17QPCh. 22 - Prob. 18QPCh. 22 - Prob. 19QPCh. 22 - Prob. 20QPCh. 22 - Prob. 21QPCh. 22 - The complex ion [Ni ( CN ) 2 Br 2 ] 2- has a...Ch. 22 - Prob. 23QPCh. 22 - Prob. 24QPCh. 22 - Prob. 25QPCh. 22 - Prob. 26QPCh. 22 - Prob. 27QPCh. 22 - Prob. 28QPCh. 22 - Prob. 29QPCh. 22 - Prob. 30QPCh. 22 - Prob. 31QPCh. 22 - Prob. 32QPCh. 22 - Prob. 33QPCh. 22 - Prob. 34QPCh. 22 - Prob. 35QPCh. 22 - Prob. 36QPCh. 22 - Prob. 37QPCh. 22 - Prob. 38QPCh. 22 - Prob. 39QPCh. 22 - Prob. 40QPCh. 22 - Prob. 41QPCh. 22 - A concentrated aqueous copper(II) chloride...Ch. 22 - Prob. 43QPCh. 22 - Prob. 44QPCh. 22 - Prob. 45APCh. 22 - Prob. 46APCh. 22 - Prob. 47APCh. 22 - Prob. 48APCh. 22 - Prob. 49APCh. 22 - Draw qualitative diagrams for the crystal held...Ch. 22 - Prob. 51APCh. 22 - Prob. 52APCh. 22 - Prob. 53APCh. 22 - Prob. 54APCh. 22 - Prob. 55APCh. 22 - Prob. 56APCh. 22 - Prob. 57APCh. 22 - Prob. 58APCh. 22 - 22.59 The -porphyrin complex is more stable than...Ch. 22 - Prob. 60APCh. 22 - Prob. 61APCh. 22 - Prob. 62APCh. 22 - Prob. 63APCh. 22 - Prob. 64APCh. 22 - Prob. 65APCh. 22 - Prob. 66APCh. 22 - Prob. 67APCh. 22 - Prob. 68APCh. 22 - Locate the transition metal atoms and ions in the...Ch. 22 - Prob. 70APCh. 22 - Prob. 71APCh. 22 - Copper is known to exist in the +3 oxidation...Ch. 22 - 22.73 Chemical analysis shows that hemoglobin...Ch. 22 - Prob. 74APCh. 22 - Prob. 75APCh. 22 - Prob. 76APCh. 22 - 22.77 Commercial silver-plating operations...Ch. 22 - Prob. 78APCh. 22 - 22.79 (a) The free Cu(I) ion is unstable in...Ch. 22 - Prob. 1SEPPCh. 22 - Prob. 2SEPPCh. 22 - Prob. 3SEPPCh. 22 - Prob. 4SEPP
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- Platinum(II) forms many complexes, among them those with the following ligands. Give the formula and charge of each complex. (a) two ammonia molecules and one oxalate ion (C2O42-) (b) two ammonia molecules, one thiocyanate ion (SCN-), and one bromide ion (c) one ethylenediamine molecule and two nitrite ionsarrow_forwardIn the following chemical reaction what is the concentrations of [H3O+] in a solution that is 0.00045 M [Al(H2O)6]3+. Assume that the [Al(H2O)6]3+ dissociates 100% completely and assume 1 Liter of solution. [Al(H2O)6]3+ + 3H2O ↔ [Al(H2O)3(OH)3]2+ + 3H3O+arrow_forward[Co(H2O)6]2+ (aq) + 4 Cl-(aq )⇆ [CoCl4]2-(aq) + 6 H2O Explain why the addition of water changes the equilibrium position even though the concentration of water is essentially constant and normally not included in the equilibrium constant expression. What are two functions that water performs in this reaction?arrow_forward
- [Cu(NH3)4]2+ forms a blue solution. When concentrated HCl is added to this solution, what color will the solution change to?arrow_forward[Fe(H2O)6]3+ (aq) + SCN1- ↔ Fe(H2O)5SCN]2+(aq) + heat yellow red For the above reaction, describe using Le Chatelier’s Principle what changes (color changes and shifts) would occur when each stress is applied to this equilibrium. Explain your answers. a) Add KSCN(aq) b) Decrease temperature c) Add AgNO3, which causes AgSCN to precipitate out.arrow_forwardWhich compound do you expect to absorb the highest energy photon? [Co(H2O)6]3+ [Co(NH3)6]3+ [CoF6]-3 [Co(CN)6 ]-3arrow_forward
- When orange solution containing Cr2O72–ion is treated with an alkali, a yellow solution is formed and when H+ions are added to yellow solution, an orange solution is obtained. Explain why does this happen?arrow_forward6. Ammonia, NH3, is a stronger ligand than Cl- but weaker than CN. Complete the balanced equations for the reactions that are predicted to occur. CoCl(aq) + CN- (aq) → Co(NH3)³+ (aq) + Cl(aq) → Co(CN)6³(aq) + NH3(aq) →→→arrow_forward[Co(OH2)4Cl2] Br can exhibit both ion-ion isomerism and hydrate isomerism. True OR Falsearrow_forward
- For the complex [Co(en)2(OH)2]OH, what is the charge on the complex ion? O -1 +1 O -3 +3arrow_forwardCalculate the Co2+ equilibrium concentration when 0.100 mole of [Co(NH3)6](NO3)2 is added to a solution with 0.025 M NH3. Assume the volume is 1.00 L.arrow_forwardUsing Le Chateliers Principle, aan you help me understand what are the net ionic equations for the reactions below? the overall reaction is: [CoCl4]2– (alc) + 6 H2O (l) ⇌ [Co(H2O)6]2+ (aq) + 4 Cl¯ (aq) Note: ‘alc’ means an alcoholic solution. The ion, [CoCl4]2– (alc), is blue in color and [Co(H2O)6]2+ (aq) is pink. We have a well filled with add 0.10M CoCl2 and add some deioinized water with stirring until a color change from blue to pink (to products). Next, we add a few drops of concentrated HCl and found color change to blue (to reactants).arrow_forward
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