compare and explain the attraction between Fe 2+ and cellulose , Cu 2+ and cellulose ,...
compare and explain the attraction between Fe 2+ and cellulose , Cu 2+ and cellulose , and Ni 2+ and cellulose. ( This is relating to paper chromotohrapy, the solvent used is HCL)
Homework Answers
Attraction of different metal ion with cellulose in Paper chromatography
CONCEPT
Different metal ion flow on cellulose paper with different rate or we can say different metal ion react with cellulose paper is different ,which show as Rf value
retension factor or Rf value is equal to distance travel by solute(metal ion )divided by distance travel by solvent, which is different for all metal ion(generally )
Ni 2+ =0.09 dark violet spot and Cu2+ =0.60 white spot , means nickel move less on celluolse paper ( which show more attractio with celluolse paper) and copper move rapidly on cellulose paper (less attraction with cellulose paper) respectively
HCL help into stop multiple spot
PROCEDURE
Cellulose act as a stationary phase ,which is dipped into solvent (normally Acetone +HCL+H2O) in a glass jar.
A Spot of mixture was put on cellulose paper ( 1 or 2 cm above solvent ),then mixture was leave for sometime.(30 to 45 mintute) to move solute on cellulose paper Then Rf value calculated my measuring distance travel by solute and solvent
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compare and explain the attraction between Fe 2+ and cellulose ,
Cu 2+ and cellulose ,...
Any ideas on what results form when you mix HCl with Ba(No3)2 , Cu(No3)2, Fe(No3)3 or...
Any ideas on what results form when you mix HCl with Ba(No3)2 ,
Cu(No3)2, Fe(No3)3
or NH3 with Ba(No3)2 , Cu(NO3)2, Fe(NO3)3 or AgNO3?
1. Com HCL COM NH₃ AgNO3 White Precipitation Ba(NO3)2 Cu(NO3)2 Fe(NO3)3
Calculate the standard cell potential for the following reaction. Fe (s) +Ni^+2 (aq) rightarrow Fe^+ 2...
Calculate the standard cell potential for the following reaction. Fe (s) +Ni^+2 (aq) rightarrow Fe^+ 2 (aq) + Ni (s) 3 Cu + 2 NO_3^- + 8 H^+ rightarrow 3 Cu^+ 2+ 2 NO +4 H_2O Cr_2O_7^-2 + 6 Fe^+2+14 H6+ rightarrow 2 Cr^+ 3 + 6 Fe^+ 3 +7 H_2O
The % difference = Standard E° (using table) = (show calculation) Ee=Fe+2/ Fe= -0.44V Eo=Cu2+/ Cu=...
The % difference = Standard E° (using table) = (show calculation) Ee=Fe+2/ Fe= -0.44V Eo=Cu2+/ Cu= +0.34 V Eo cell=Eocathode-Eganode = Ee Cu+2/cu- Eo Fe2+/ Fe = +0.34+ 0.44 V = +0.78 V Note that the list of reduction reactions includes the reduction of ironfil) to elemental iron, and also the reduction of iron(III) to iron(II). Is your data more consistent with the formation of Fe? or Felt? Explain your answer.
1. Voltage reading for Fe-Cu cell 0.60 V 2. Voltage reading for Fe-Zn cell 0.25 V...
1. Voltage reading for Fe-Cu cell 0.60 V 2. Voltage reading for Fe-Zn cell 0.25 V 3. Voltage reading for Cu-Zn cell 0.80 V 4. Fe2+ reduction half-reaction and Esedº Ered 5. Cu2+ reduction half-reaction and Ered Ered 6. Zn2+ reduction half-reaction and Ered Ered 7. Redox reaction of Fe-Cu cell 8. Fe-Cu Ecelº Ecell = 9. Redox reaction of Fe-Zn cell 10. Fe-Zn Ecetº Ece 11. Redox reaction of Cu-Zn cell 12. Cu-Zn Eceitº Ecelº = Questions to consider...
Data Sheet with Sample Data 1. Voltage reading for Fe-Cu cell 0.60 V 2. Voltage reading...
Data Sheet with Sample Data 1. Voltage reading for Fe-Cu cell 0.60 V 2. Voltage reading for Fe-Zn cell 0.25 V 3. Voltage reading for Cu-Zn cell 0.80 V 4. Fe2+ reduction half-reaction and Eredº Ered = 5. Cu2+ reduction half-reaction and Ered Eredº 6. Zn2+ reduction half-reaction and Ered Ered- 7. Redox reaction of Fe-Cu cell 8. Fe-Cu Ecelº Ecetº = 9. Redox reaction of Fe-Zn cell 10. Fe-Zn Ecello Ecelº = 11. Redox reaction of Cu-Zn cell 12....
Would it be possible to confirm the presence of Cu^2+ or Ni^2+ in a mixture of...
Would it be possible to confirm the presence of Cu^2+ or Ni^2+ in a mixture of these two ions? Why or why not? Consider the observations for the reaction of Pb^2+ ion with HCl. Explain how a student could have an unknown mixture containing Pb^2+ and not be able to confirm it if the addition of reagents is not performed carefully.
Compare the potentials between the Ag/Ag+ and Cu/Cu2+ half cells before and after adding excess NH3...
Compare the potentials between the Ag/Ag+ and Cu/Cu2+ half cells before and after adding excess NH3 to the Cu/Cu2+ half cell. Did the potential increase or decrease? Explain the result in terms of the Nernst equation.
Set Double Replacement Reaction Will precipitate form? Observations Prediction Correct? 1 2 Ni(NO3)2 + NaOH Ni(NO)...
Set Double Replacement Reaction Will precipitate form? Observations Prediction Correct? 1 2 Ni(NO3)2 + NaOH Ni(NO) + NaCl Ni(NO3)2 + Na PO, Ni(NO), + Na.co Ni(NO) + Na SO Fe(NO3)2 + NaOH Fe(NO) Naci Fe(NO.), + Na,PO Fe(NO) + Na.co Fe(NO) Na SO Cu(NO), NaOH Cu(NO3)2 + Cu(NO) Na PO, Cu(NO)2 + Na.co, Cu(NO) Na,so Nac! Set Double Replacement Reaction Will precipitate form? Observations Prediction Correct? 4 5 + + Co(NO3)2 + NaOH Co(NO3)2 + Naci CO(NO)2 + Na PO,...
Write a balanced equation for the synthesis of each complex: [Co(en)3]3+ [Ni(en)3]2+ [Zn(en)3]2+ [Cu(en)3]2+ [Fe(en)3]3+
Write a balanced equation for the synthesis of each complex: [Co(en)3]3+ [Ni(en)3]2+ [Zn(en)3]2+ [Cu(en)3]2+ [Fe(en)3]3+
identification half-reaction Cu(s)— Cu²+(aq) + 2€ Fe3+ (aq) + >Fe²+ (aq) oxidation reduction (2) Write a...
identification half-reaction Cu(s)— Cu²+(aq) + 2€ Fe3+ (aq) + >Fe²+ (aq) oxidation reduction (2) Write a balanced equation for the overall redox reaction. Use smallest possible integer coefficients.
Any ideas on what results form when you mix HCl with Ba(No3)2 ,
Cu(No3)2, Fe(No3)3
or NH3 with Ba(No3)2 , Cu(NO3)2, Fe(NO3)3 or AgNO3?
1. Com HCL COM NH₃ AgNO3 White Precipitation Ba(NO3)2 Cu(NO3)2 Fe(NO3)3
Calculate the standard cell potential for the following reaction. Fe (s) +Ni^+2 (aq) rightarrow Fe^+ 2 (aq) + Ni (s) 3 Cu + 2 NO_3^- + 8 H^+ rightarrow 3 Cu^+ 2+ 2 NO +4 H_2O Cr_2O_7^-2 + 6 Fe^+2+14 H6+ rightarrow 2 Cr^+ 3 + 6 Fe^+ 3 +7 H_2O
The % difference = Standard E° (using table) = (show calculation) Ee=Fe+2/ Fe= -0.44V Eo=Cu2+/ Cu= +0.34 V Eo cell=Eocathode-Eganode = Ee Cu+2/cu- Eo Fe2+/ Fe = +0.34+ 0.44 V = +0.78 V Note that the list of reduction reactions includes the reduction of ironfil) to elemental iron, and also the reduction of iron(III) to iron(II). Is your data more consistent with the formation of Fe? or Felt? Explain your answer.
1. Voltage reading for Fe-Cu cell 0.60 V 2. Voltage reading for Fe-Zn cell 0.25 V 3. Voltage reading for Cu-Zn cell 0.80 V 4. Fe2+ reduction half-reaction and Esedº Ered 5. Cu2+ reduction half-reaction and Ered Ered 6. Zn2+ reduction half-reaction and Ered Ered 7. Redox reaction of Fe-Cu cell 8. Fe-Cu Ecelº Ecell = 9. Redox reaction of Fe-Zn cell 10. Fe-Zn Ecetº Ece 11. Redox reaction of Cu-Zn cell 12. Cu-Zn Eceitº Ecelº = Questions to consider...
Data Sheet with Sample Data 1. Voltage reading for Fe-Cu cell 0.60 V 2. Voltage reading for Fe-Zn cell 0.25 V 3. Voltage reading for Cu-Zn cell 0.80 V 4. Fe2+ reduction half-reaction and Eredº Ered = 5. Cu2+ reduction half-reaction and Ered Eredº 6. Zn2+ reduction half-reaction and Ered Ered- 7. Redox reaction of Fe-Cu cell 8. Fe-Cu Ecelº Ecetº = 9. Redox reaction of Fe-Zn cell 10. Fe-Zn Ecello Ecelº = 11. Redox reaction of Cu-Zn cell 12....
Would it be possible to confirm the presence of Cu^2+ or Ni^2+ in a mixture of these two ions? Why or why not? Consider the observations for the reaction of Pb^2+ ion with HCl. Explain how a student could have an unknown mixture containing Pb^2+ and not be able to confirm it if the addition of reagents is not performed carefully.
Set Double Replacement Reaction Will precipitate form? Observations Prediction Correct? 1 2 Ni(NO3)2 + NaOH Ni(NO) + NaCl Ni(NO3)2 + Na PO, Ni(NO), + Na.co Ni(NO) + Na SO Fe(NO3)2 + NaOH Fe(NO) Naci Fe(NO.), + Na,PO Fe(NO) + Na.co Fe(NO) Na SO Cu(NO), NaOH Cu(NO3)2 + Cu(NO) Na PO, Cu(NO)2 + Na.co, Cu(NO) Na,so Nac! Set Double Replacement Reaction Will precipitate form? Observations Prediction Correct? 4 5 + + Co(NO3)2 + NaOH Co(NO3)2 + Naci CO(NO)2 + Na PO,...
identification half-reaction Cu(s)— Cu²+(aq) + 2€ Fe3+ (aq) + >Fe²+ (aq) oxidation reduction (2) Write a balanced equation for the overall redox reaction. Use smallest possible integer coefficients.
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