6. The statement below describes the anomalous behaviour of Berylium, Be. Select the BEST statement which describes the phenomena. A. Be form ionic compounds B. Be form stable compound with only polydentate ligand C. BeO and Be(OH)2 are basic D. [Be(H20)4]²+ ion is acidic in aqueous solution due to the hydrolysis.

6. The statement below describes the anomalous behaviour of Berylium, Be. Select the BEST statement which describes the phenomena. A. Be form ionic compounds B. Be form stable compound with only polydentate ligand C. BeO and Be(OH)2 are basic D. [Be(H20)4]²+ ion is acidic in aqueous solution due to the hydrolysis.

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

Chapter21: Transition Metals And Coordination Chemistry

Section: Chapter Questions

Problem 106IP: The ferrate ion, FeO42, is such a powerful oxidizing agent that in acidic solution, aqueous ammonia...

See similar textbooks

Similar questions

The ferrate ion, FeO42, is such a powerful oxidizing agent that in acidic solution, aqueous ammonia is reduced to elemental nitrogen along with the formation of the iron(III) ion. a. What is the oxidation state of iron in FeO42, and what is the electron configuration of iron in this polyatornic ion? b. lf 25.0 mL of a 0.243 M FeO42 solution is allowed to react with 55.0 mL of 1.45 M aqueous ammonia, what volume of nitrogen gas can form at 25C and 1.50 atm?
estion 1'of 13 Write a balanced chemical equationffor the reaction of [Co(H,O),]²+ with Cl¯. Be sure to include phase symbols. balanced chemical equation:
3. A solution that may contain any of the III cations. Treatment of the solution with CIO in group alkaline medium yields a yellow solution and a colored precipitate. The acidified solution is unaffected by treatment with NH,OH. The colored precipitate dissolves in nitric acid: addition of excess NH,OH to this acidic solution produces only a blue solution. Which group II ions are present? Which are absent? Which are in doubt? How would you remove all doubt?
Calculate the concentration of [Ag(S2O3)2]3- in a solution which contains 8.5E-6 M Ag+ ions and twice that molar concentration of thiosulfate ions at equilibrium? The Kf for [Ag(S2O3)2]3- is 4.7 x 1013. Your answer should have 2 sig figs.
Why is [Fe(OH2)l6]%+ prepared in an acidic solution? 13+ A. It is a Bronsted acid in aqueous solution B. It is stabilized against reduction in acid O C. It is not soluble in water at pH = 7.0 O D. All of the choices
Calculate the molar concentration of zinc ions in a solution containing 0.200 M [Zn(NH3)4]2+ (K¢ = 4.10x10°) and 0.0116 M NH3 at equilibrium. Give your answer to the correct number of sig. figs. in regular notation (e. g. 0.0123).
Outline the separation of the following groups of ions, leaving out all unnecessary steps a. Ag*, Hg, Co+2 b. Pb2, Cu?, cd? c. Bi, As, s6+3
1. Answer the following questions: a) Why aqueous solutions of KMNO4 are not entirely stable? b) What factors affect the decomposition of KMNO4? c) How can you prepare 1L of 0.01M solution of KMnO4 (FW = 158.04g) in the laboratory? 2. Derive and Calculate the equilibrium constant of the reaction? 2 Fe3+ + 31 -→ 2 Fe* + P- 2 Fe3+ + 2 e - +2 e E = 0.771 V E = 0.536 V -> 2 Fe2+ -> 3. Compare between Galvanic cell and Electrolytic cell? 4. Explain how is K¿Cr,07 is applied in titration of Fe (II) solution? 5. Why reductants are seldom used for direct titration of oxidized analyte? 6. How is sodium thiosulfate solution is used to determine oxidizing agents (such as ClO) by indirect procedure that involves iodine as an intermediate?
Cerium(IV) is a strong oxidizing agent commonly used in redox titrations. Which of the following statemnt is/are NOT true for cerium(IV)? I.A Ce** standard solution is prepared using primary-standard-grade ammonium hexanitratocerate(IV), (NH4)2Ce(NO3); dissolved in hot hydrochloric acid solution. II. Ce** is yellow and Ce3* is colorless. The color change is abrupt enough that Ce** can serve as its own indicator. III. Ce**/Ce* exists in different formal potential in different acids due to the interaction of the anions part of the acid with Ce** IV. Analysis of many organic analyte such as alcohol, aldehydes can be determined using Ce**by an indirect method involving a technique of back titration of unreacted excess Ce*with standard iron Il titrant O a. 1,11,IV O b. 1, II, III O. I,II O d. II, II, IV O e. I, II, III, IV
1. What mass of solid Lanthanum (III) oxalate nonahydrate { La2 ( C2O4 )3 ∙ 9 H2O } can be obtained from 650 mL of 0.0170 M aqueous solution of LaCl3 by adding a stoichiometric amount of sodium oxalate? 2. Calculate the mass of hydrogen formed when 25 grams of aluminum reacts with excess hydrochloric acid.2Al + 6HCl → Al2Cl6 + 3H2 3. What mass of ZnCl2 can be prepared from the reaction of 3.27 grams of zinc with 3.30 grams of HCl?Zn +2HCl → ZnCl2 + H2 4. How many milliliters of 0.200 M NH2OH are needed to react with 12.0 mL of 0.550 M FeCl3?FeCl3 + 3NH4OH Fe(OH)3 + 3NH4Cl
O cat. Pd(OAc)2 cat. ligand K₂CO3 toluene, 80 °C
Give Short reasons, each section bears equal marks i Melting point of Nacl is lower than MgO why? ii. Br is less reactive than F, why? il. Complete and balance the following two reactions and derive your conclusion, what do they indicate? a. Al(OH)3(s) + H'(aq) b. Al(OH)3s) + HO (aq) iv. Cand Si are oxophiles while heavier congeners of the group make stable bond with Sulphur, give reasons? V. What are common uses of Group 13 elements. Enlist at least four uses.