i need help with this lab please. can i get someone to answer the entire thing....
In an ammonia solution, the silver ion, Ag, forms the colorless, but soluble diamminesilver(I) complex ion, Ag(NH3)2. If ammonia is added to a solution that contains an AgCI precipitate, the solid dissolves completely. Write a net-ionic equation for the equilibrium involved and explain the shift that takes place. Choose the best answer. AgCl(s) +2 NH3(a)Ag(NH3)2 (aa) C(aq) Adding ammonia to AgCl(s) dissolves the solid by displacing chloride ions with ammonia molecules, forming a soluble complex ion Ag (a2 NH3(aq) Ag(NH32...
Another form of this equation (called the complete ionic equation) indicates the species that are actually present in solution. 2Na+ + CO32-+2hr + 2 cr . 4 co2 +H2O + 2 Na. + 2 cr Since balanced chemical equations indicate only substances that change, this equation simplifies to This simplified equation is called a net ionic equation. The evolution of CO2 gas is visible as tiny bubbles. Sulfate, so2 Sulfate, So,, is found in compounds such as NaSO4. If a...
POST LAB QUESTIONS Answer the following questions in your lab notebook: 1. Give the chemical formula for a single chemical reagent that would : (a) separate Ag from Cut b) separate AgCl from PbCl2 - separate Cu2+ from Mat (d) separate Fet from Zn2+ (e) Dissolve Zn(OH), but not Fe(OH)3 (f) separate Ba2+ from Mn2+ and Zn2+ 2. Write balanced ionic chemical equations for: a. The dissolution of AgCl in excess ammonia b. The precipitation of Pb * to PbCrO4(s)...
please i need help with these questions. thanks Solid ammonium phosphate is slowly added to 175 mL of a 0.0654 M zinc acetate solution. The concentration of phosphate ion required to just initiate precipitation is M. Submit Answer Retry Entire Group 4 more group attempts remaining Use the References to access important values if needed for this question. Solid copper(II) acetate is slowly added to 50.0 ml of a 0.0575 M potassium sulfide solution. The concentration of copper(II)ion required to...
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...
FesCN (aq), and LeChâtelier's Explain in terms of the equation, Fe" (aq) + SCN (aq) Principle (4 ) Observation after adding KSCN: turned darker more red like original solution brown Explain in terms of the equation, Fe (aq) + SCN (aq) + FeSCN- (aq), and LeChâtelier's Principle. (ps.) Observation after adding AgNO3: Turned milky white + thieverf less transparent Using the ions present in the solution, write a net ionic equation that would explain the precipitate observed Use the above...
2. Suppose you are given the following experimentally observed facts regarding the re- actions of silver ion. c. a. Agt reacts with Cl- to give white AgCl(s). b. Agreacts with ammonia to give a quite stable complex ion, Ag(NH3)2 A black suspension of solid silver oxide, Ag,0(s), shaken with NaCl solution, changes to white AgCl(s). d. AgCl(s) will dissolve when ammonia solution is added, but AgI(s) does not dis- solve under these conditions. Write equations for any net reactions in...
1. Why does Al(OH)3 and Fe(OH), precipitate from the ammonia buffer system, while Cu(OH)2 does not? 2. What will likely happen if excess NaOH is added to a solution containing Cu, Fe, and Al ions? 3. What is the name of the C20, ion? What is its Lewis structure? 4. How can the K ion be positively identified? 5. Combine the K, and K, equilibria for AgCl and Ag(NH3)2 respectively and demonstrate Hess's law to determine the equilibrium constant for the dissolution of AgCl...
all 5&6 5.) Solid silver bromide , AgBr, can be dissolved by adding concentrated aqueous ammonia to give the water- soluble silver-ammonia complex ion. AgBr(s) + 2NH,(aq) U Ag(NH), (aq) + Br(aq) (a) Show that this equation is the sum of two other equations, one representing the dissolution of AgBr into its component ions and the other representing the formation of the silver-ammonium complex from silver ion and ammonia (b) Calculate the equilibrium constant for the above reaction K,(AgBr) =...
i need help on question 2a,b,c and 3a,b,c on the post lab. Experiment EQ-309 Post-Lab Questions Determination Of An Equilibrium Constant (To be answered in the "Analysis" section of your lab report) 1 a) Calculate the molarity of the silver nitrate solution provided. b) Calculate the molarity of the sodium chloride solution provided. 2 a) Use the data from each titration to calculate the value of K for the reaction, Ag(NH)2+ + Cl" - AgCl, + 2 NH, b) Calculate...