Post Lab Help:
1) Which cation forms a two ligand complex with NH3?
2) Which anion does not form a precipitate with lead?
3) Write the balanced equation for the dissociation of the compound in question 2 in water.
Post Lab Help: 1) Which cation forms a two ligand complex with NH3? 2) Which anion...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown centained only sulfate ion. Which test would most quickly 3. Consider each set of results below which were carried out on a solution containing either (1)one of the six anions studied in this experiment, or (2) none...
LAB DESCRIPTION: In aqueous solutions the Ni2+ cation forms a complex ion with 6 H2O ligands. The formula of this complex ion is: Ni(H2O)62+. When this complex ion is mixed with aqueous NH3 a reaction occurs where some of the H2O ligands are displaced with NH3 ligands. But how many of the H2O are displaced by NH3? In this experiment you will mix nickel(II) sulfate and aqueous ammonia to synthesize a compound containing a complex ion whose formula is Ni(H2O)6-x(NH3)x2+,...
Post-Lab Questions: 1. If you had a solution which contained only chloride, bromide, or iodide ion, which of the three tests would most clearly tell you which anion was in the solution? Explain. 2.) Suppose that you were quite sure that your unknown contained only sulfate ion. Which test would most quickly (that is, in the fewest steps) confirm your hypothesis? Explain. Consider each set of results below which were carried out on a solution containing either (1)one of the...
I need help with questions 4 and 7 please
1 Cation Analysis Prelaboratory Questions DIXON No.2 HB 1. Ag, Hg2+, and Pb2+ belong to group I cations. What specific reaction do they all undergo? What is the distinctive observation for this reaction? The observation, that they will occur is that a white preciptate will form. They will react with dilluted HCl. 2. Describe the solubility of compounds AgCl, PbCl2, and HgCl, in a) room temperature water. AGCI PbCl₂ insluable HgzCl₂...
1. A complex, [CuCl 5.0x10 forms when mixing aqueous solutions of CuCla and NaCl. The Kr for this reaction is a. Write the balanced equation for this equilibrium reaction. b. If Na:CO3 is added to the solution, a precipitate will form. Identify the precipitate. c. The Kap for this precipitate is 2.5x1010, What is the value of the equilibrium constant governing the equilibrium from part b? 2. For the following salt: KF a. Write the chemical equation for the anion...
Question 5: The cation, Co2+, is able to form a complex ion, [Co(SCN)4] 2–, with the thiocyanate anion, SCN–. (a) Write the chemical equation for the (a) Write the chemical equation for the formation of this complex ion with the corresponding expression for the formation constant, Kf, and (b) Given Kf for [Co(SCN)4] 2– = 1 x103, explain how having SCN– in solution would affect the solubility of Co(OH)2 (Ksp for Co(OH)2 = 1.3 x 10–15).
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A 1.470 g sample of an organic acid containing C, H and was combusted to determine the empirical formula. The combustion produced 3.810g of carbon dioxide (44,01 g/mol) and 1.820g of water(18.02 g/mol). Determine the number of moles of carbon in the compound, C- 12.01 g/mol H-1.01 g/mol 0-16.00 g/mol If 12.76 g of potassium phosphate reacts with excess lead(II) nitrate, a white precipitate of lead(11) phosphate forms in a solution of potassium nitrate. Write a balanced equation....
6. (1 pt) Cd forms a 3:1 complex in three separate steps, with bidentate ligand 1,10-phenanthroline Cphen"). The successive log Kr's are: Log Ki -5.17. Log K:-4.83, Log K 4.25. (a) Write balanced chemical equations showing the three steps in forming the Cd(phen)) complex. the appropriate Kr beside the three equations. Write (b) (1 pt) Calculate Kceveall for the formation of Cd(phen). 6, continued, part (c) (1 pt) Using your balanced overall equation, the Kcovrali and this data, prepare an...
A) Consider the insoluble compound zinc hydroxide, Zn(OH)2. The zinc ion also forms a complex with ammonia. Write a balanced net ionic equation to show why the solubility of Zn(OH)2(s) increases in the presence of ammonia and calculate the equilibrium constant for this reaction. For Zn(NH3)42+, Kf = 2.9×109. Specify states such as (aq) or (s) and provide K. K = ______ B) Consider the insoluble compound nickel(II) hydroxide, Ni(OH)2. The nickel ion also forms a complex with cyanide ions....
POST-LAB QUESTIONS 1. A compound of molecular formula CH..0 forms a yellow precipitate with 2,4-dinitrophenylhydrazine reagent and a yellow precipitate with reagents for the iodoform test, draw the structural formula for this compound. 2. What kind of results do you see when the following compounds are mixed together with the given test solution? a) with 2,4-dinitrophenylhydrazine with chromic with chromic acid with 12-KI reagent CH3CH2CH with Tollens' reagent 3. Write the structure of the compound that gives a silver mirror...