5. Copper(II) with Ammonia, NH3Three equilibria are occurring.⚫ [Cu(H2O)6]2+(aq) + 2 NH4OH Cu(OH)2(s).light blue•white solid+ 2 NH4*(aq)white precipitateCu(OH)2(s) + 4 NH3 [Cu(NH3)]4] 2*(aq) + 2 OH-(aq)royal purple->• H2SO4(aq) + 2 NH4OH(aq) → 2 H2O + 2 NH4+ (aq) + SO4² (aq) neutralization of NH3NH4*(aq)A. Explain what happen in the first 2 reactions as ammonia is added. Use the equilibria inthe equations.

1. **Formation of Copper(II) Hydroxide:** - Initially, the copper(II) ions are in a complex with…

Answered: 5. Copper(II) with Ammonia, NH3 Three…

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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Write the net ionic equation for [Fe(SCN)]2+ + Zn Hint: Zn is converted to Zn2+ and Fe3+ to Fe2+
1. What is the balanced net ionic equation for the equilibrium involving complex ions, CoCL42- and [Co(H2O)6]2+. 2. When heating the mixture the color was blue and when cooled it was pink. Based on this, is the forward reaction endothermic or exothermic and why? What is the balanced net ionic equation when heat is included? 3. How could an alcohol solution of CoCL2 beused to predict rain?
Name the following metal complexes or complex ions: formula name [Fe(OH), (en),] [V(CN),(NH,).] TiF ?
What is the reducing agent in the reaction below? 2[Co(H₂O)6]Cl2 (s) + 8NH3(aq) + 2NH4Cl(s) + H₂O2(aq) → 2[C0(NH3)5Cl]Cl2(aq) 14H₂0 (1) NH3 N3- Co2+ Co(H₂O) 6]Cl₂ NHẠC +
Given that the Kf for [Ni(H2O)5(NH3)]2+ is 501 and Ka for NH4+ is 2.0 x 10-5, what is the equilibrium constant for the following reaction: Ni2+(aq) + NH4+(aq) --> [Ni(H2O)5(NH3)]2+ + H+(aq) In a solution of 0.010 M Ni2+ and 0.010 M NH4+, will this reaction favor products or reactants at pH=1? pH=7? pH=12? how do you find the concentration of [Ni(H2O)5(NH3)]2+?
1. Give the electron configuration (in t2g and eg forms) for Ti(III), Mn(II), and Ni(II) ions in: a) Octahedral (high spin) b) Tetrahedral crystal fields
bot 3. Iron(II) ion (Fe°*) reacts with thiocyanate ion (SCN¯) to form a red complex ion with the formula [FESCN]2+. The net ionic equation describing this reaction is given in Equation 10. eH MC () Fe+ (aq, It. yellow) + SCN (aq, colorless)=[FESCN]²+ (aq, red) 12+ (Eq. 10) A student studying this equilibrium begins with an equilibrium mixture that is light pink. (1) What change will the student observe when a solution containing Fe³+ ion is added to this mixture?
10) Ce³+ exhibits pH dependent solubility. If Ce(NO3)3 is dissolved in an acidic solution to a concentration of 0.025 M, at what pH has 95% of the cerium been removed as the insoluble hydroxide salt? Ce(OH)3 pKsp=21.2
Balance this equation and balanced reaction equation and the quantities included in the procedure to calculate the theoretical yield of K[Cr(C2O4)2(H2O)2]·2H2O.
In acidic aqueous solution, the purple complex ion Co(NH3)5Br2+Co(NH3)5Br2+ undergoes a slow reaction in which the bromide ion is replaced by a water molecule, yielding the pinkish-orange complex ion : Co(NH3)5(H2O)3+Co(NH3)5(H2O)3+Co(NH3)5Br2+Purple(aq)+H2O(l)→Co(NH3)5Br2+Purple⁡(��)+H2O(�)→ Co(NH3)5(H2O)3+Pinkish−orange(aq)+Br−(aq)Co(NH3)5(H2O)3+Pinkish−orange⁡(��)+Br−(��)The reaction is first order in Co(NH3)5Br2+Co(NH3)5Br2+, the rate constant at 25 ∘C∘C is 6.3×10−66.3×10−6 s−1s−1, and the initial concentration of Co(NH3)5Br2+Co(NH3)5Br2+ is 0.100 MM. What is its molarity after a reaction time of 15.0 hh ? Express your answer using two significant figures. How many hours are required for 77 %% of the Co(NH3)5Br2+Co(NH3)5Br2+ to react? Express your answer using two significant figures.
A) Using a cobalt (III) ion as the central metal atom, and with chloride ions (Cl-) and ammonia (NH3) molecules as the ligands, draw both isomers of the coordination complex that will exhibit fac/mer isomerism. B) Using a platinum (II) ion as the central metal atom, with chloride ions and ammonia molecules as the ligands, draw both isomers of the coordination complex that will exhibit cis/trans isomerism. Platinum (II) forms four coordinate bonds.
Given the following ionization constant values, which is the strongest weak acid? [Co(OH2)61²+: Ka= 5.0 x 10-10 [Fe(OH2)6]2+: K₂= 3.0 x 10-10 [Fe(OH₂)6]³+: K₂= 4.0 x 10-3 [Be(OH2)4]2+: K₂= 1.0 x 10-5 [Cu(OH2)4]2+: Ka= 1.0 x 10-8

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