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A solid mixture of AgCl can be separated from Hg2Cl2 by addition of O NH3(aq) Hot...
Silver ions can be precipitated from aqueous solutions by the addition of aqueous chloride: Ag+(aq)+Cl−(aq)→AgCl(s) Silver...
Silver ions can be precipitated from aqueous solutions by the addition of aqueous chloride: Ag+(aq)+Cl−(aq)→AgCl(s) Silver chloride is virtually insoluble in water so that the reaction appears to go to completion. How many grams of solid NaCl must be added to 25.0 mL of 0.149 M AgNO3 solution to completely precipitate the silver?
Review equation 16.10 and step B2. Ag+1(aq) and NH3(aq) will form a soluble complex ion. Use...
Review equation 16.10 and step B2. Ag+1(aq) and NH3(aq) will form a soluble complex ion. Use rule 3 of Water-Insoluble Salts in Appendix E to determine what would happen if Ag+1(aq) was combined with KOH instead of NH3. Write the net ionic equation with phase subscripts, where K+1 is a spectator ion which is cancelled out. Equation 16.10: Ag^+(aq) + Cl^-(aq) ⇄ AgCl(s) ⇅ 2NH3(aq) [Ag(NH3)2]^+(aq) Step B2: Silver Chloride equilibrium. To the clear solution from part B.1, add 5...
Question 17 (1 point) Ethers can be prepared from alcohols by? O a reductive addition. O...
Question 17 (1 point) Ethers can be prepared from alcohols by? O a reductive addition. O an oxidative addition. O a nucleophilic substitution. O an electrophilic addition. O a condensation. Question 15 (1 point) Which reaction cannot be used to prepare an alcohol? addition of H30+ to an alkene. O an Organocuprate with an alkyl halide O a Grignard reagent with an aldehyde. O a Grignard with an ester Oa Grignard with a ketone Question 16 (1 point) Fischer esterification...
7. If the hot solution in step 2 cooled to room temperature before centrifuging, how would...
7. If the hot solution in step 2 cooled to room temperature before centrifuging, how would the lead test be affected? You must be specific in your answer and include a clear chemical reason. Confirmation of Lead 2. Add 2 mL of water to the solids in test tube from step 1. Place the test tube in a boiling water bath for 5 minutes. Remove from the bath and centrifuge while still hot. If there are no solids, you have...
30 Consider the reaction of solid PbO and gaseous NH3 to form solid Pb, nitrogen gas,...
30 Consider the reaction of solid PbO and gaseous NH3 to form solid Pb, nitrogen gas, and water vapor. Write the balanced chemical equation for the reaction. a O of 0.25 points earned 3 attempts remaining how many moles of NH3 are required to produce 185.6 grams of Pb ? O of 0.25 points earned 3 attempts remaining how many grams of N2 will be produced from 0.447 moles of Pbo? C O of 0.25 points earned 3 attempts remaining...
Cu2+ Equilibrium #3 NH3(aq) + H2O(1) A NH (W) + OH Cam colorless pink Stress Predicted...
Cu2+ Equilibrium #3 NH3(aq) + H2O(1) A NH (W) + OH Cam colorless pink Stress Predicted Shift (forward or reverse) Predicted Color Actual Shift (forward or reverse) Actual Color Did the prediction match the actual result? after addition of NH3 after addition of NH4+ Rev 11-27-17 ADA Equilibrium #4 NiCl(aq) + 6NH3(aq) Ni(NH3)2(aq) + 2Cl(aq) yellow-green blue Stress Predicted Shift (forward or reverse) Predicted Color Actual Shift (forward or reverse) Actual Color Did the prediction match the actual result? after...
I need help with questions 4 and 7 please 1 Cation Analysis Prelaboratory Questions DIXON No.2...
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...
Question 10 1 pts How can coloured impurities be removed from a solid compound by the...
Question 10 1 pts How can coloured impurities be removed from a solid compound by the recrystallisation process? removed by hot filtration (remain in filter paper) removed by boiling off from solution 0 remain in solution-not present in sufficient quantity to crystallise out 0 heat solution with decolourising charcoal followed by hot filtration Question 4 1 pts Before heating acetanilide and water to boiling point a third ingredient" must be added. What is this "ingredient? Othermometer antibumping granules O glass...
I need help figuring out the flowchart and if I have the right answers for the...
I need help figuring out the flowchart and if I have the right
answers for the prelab please and thank you!
Group I, the Chloride Group BACKGROUND The precipitating reagent for the chloride group is chloride ion in an acidic solution. Only three of the 18 metal ions form a precipitate with this reagent: silver ion (Ag'), mercury(I)ion (Hg). and lead ion (Pb). Since lead chloride is somewhat soluble, it is not completely precipitated here, and a low concentration of...
Lead ions can be precipitated from aqueous solutions by the addition of aqueous iodide: Pb2+(aq) +...
Lead ions can be precipitated from aqueous solutions by the addition of aqueous iodide: Pb2+(aq) + 2 I-(aq) → PbI2(s) Lead iodide is virtually insoluble in water so that the reaction appears to go to completion. How many milliliters of 3.550 M HI(aq) must be added to a solution containing 0.100 mol of Pb(NO3)2 to completely precipitate the lead?
Question 17 (1 point) Ethers can be prepared from alcohols by? O a reductive addition. O an oxidative addition. O a nucleophilic substitution. O an electrophilic addition. O a condensation. Question 15 (1 point) Which reaction cannot be used to prepare an alcohol? addition of H30+ to an alkene. O an Organocuprate with an alkyl halide O a Grignard reagent with an aldehyde. O a Grignard with an ester Oa Grignard with a ketone Question 16 (1 point) Fischer esterification...
7. If the hot solution in step 2 cooled to room temperature before centrifuging, how would the lead test be affected? You must be specific in your answer and include a clear chemical reason. Confirmation of Lead 2. Add 2 mL of water to the solids in test tube from step 1. Place the test tube in a boiling water bath for 5 minutes. Remove from the bath and centrifuge while still hot. If there are no solids, you have...
30 Consider the reaction of solid PbO and gaseous NH3 to form solid Pb, nitrogen gas, and water vapor. Write the balanced chemical equation for the reaction. a O of 0.25 points earned 3 attempts remaining how many moles of NH3 are required to produce 185.6 grams of Pb ? O of 0.25 points earned 3 attempts remaining how many grams of N2 will be produced from 0.447 moles of Pbo? C O of 0.25 points earned 3 attempts remaining...
Cu2+ Equilibrium #3 NH3(aq) + H2O(1) A NH (W) + OH Cam colorless pink Stress Predicted Shift (forward or reverse) Predicted Color Actual Shift (forward or reverse) Actual Color Did the prediction match the actual result? after addition of NH3 after addition of NH4+ Rev 11-27-17 ADA Equilibrium #4 NiCl(aq) + 6NH3(aq) Ni(NH3)2(aq) + 2Cl(aq) yellow-green blue Stress Predicted Shift (forward or reverse) Predicted Color Actual Shift (forward or reverse) Actual Color Did the prediction match the actual result? after...
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...
Question 10 1 pts How can coloured impurities be removed from a solid compound by the recrystallisation process? removed by hot filtration (remain in filter paper) removed by boiling off from solution 0 remain in solution-not present in sufficient quantity to crystallise out 0 heat solution with decolourising charcoal followed by hot filtration Question 4 1 pts Before heating acetanilide and water to boiling point a third ingredient" must be added. What is this "ingredient? Othermometer antibumping granules O glass...
I need help figuring out the flowchart and if I have the right
answers for the prelab please and thank you!
Group I, the Chloride Group BACKGROUND The precipitating reagent for the chloride group is chloride ion in an acidic solution. Only three of the 18 metal ions form a precipitate with this reagent: silver ion (Ag'), mercury(I)ion (Hg). and lead ion (Pb). Since lead chloride is somewhat soluble, it is not completely precipitated here, and a low concentration of...
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