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Match Cations and Colors of Precipitate: Colors:  Green Gel   Blue Gel   Brown Gel    White Gel Cations: Cr3+       Zn 2+   Ni2+     Fe3+      Cu2+    Al3+

Match Cations and Colors of Precipitate: Colors:  Green Gel   Blue Gel   Brown Gel    White Gel Cations: Cr3+       Zn 2+   Ni2+     Fe3+      Cu2+    Al3+

Chemistry
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
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Match Cations and Colors of Precipitate:

Colors:  Green Gel   Blue Gel   Brown Gel    White Gel

Cations:

Cr3+      

Zn 2+ 

 Ni2+   

 Fe3+     

Cu2+   

Al3+

 

 

Z n2+, (aq) A 13+ (aq) colourless colourless white gel. ppt. of white gel. ppt. of Zn(OH)2 Al(OH)3 a ppt. dissolves - clear solution, ,a colourlesscomplex colourless complex ion ppt. dissolves – clear solution, ion pur [Zn(OH)4]2- [AI(OH)6]3- le ate ely e. per
Transcribed Image Text:Z n2+, (aq) A 13+ (aq) colourless colourless white gel. ppt. of white gel. ppt. of Zn(OH)2 Al(OH)3 a ppt. dissolves - clear solution, ,a colourlesscomplex colourless complex ion ppt. dissolves – clear solution, ion pur [Zn(OH)4]2- [AI(OH)6]3- le ate ely e. per
match the cations with the color of the precipitate that it will form INITIALLY when treated with hydroxide. NOTE : More than one might have the same color. Cu2*(aq) Reagent\lonCr3*lag) and initial colour Mn2* (aq)very Fe2+, pale pink - colourless N i2+ (aq) Mn2+, Fe3+ (aq) Co2+ C o2+ Z n2* (aq) (aq) (aq) green pale green yellow- (aq) blue colourless brown pink green initial N2OH(aq) white gel. ppt. of green gel. white gel. ppt. of blue dark green brown gel. green gel. blue ppt. but darkens with brown on oxidation gel. ppt.of turns Fe(OH)3 ppt. => gel. ppt. of Zn(OH)2 Cr(OH)3 ppt. that ppt. of Cu(OH)2 strong base/alkali oxidation Ni(OH)2 Mn(OH)2==>Fe(OH)2==> Mn203 ==> Fe(OH)3 MnO2 pink on standing Co(OH)2 no further effect - just effect - just further further further slight as above There is a ppt. dissolves - ppt. dissolves to give clear green with more solution of oxidation complex ion excess no further no no no NaOH(aq) as above with more just as clear solution, effect reaction, a colourlesscomplex ion effect - effect strong base/alkali deeper blue colour is seen, but, the hydroxide precipitate is effectively insoluble. See Copper Notes oxidation above (Zn(OH)4]²- with more oxidation [Cr(OH)6]3-
Transcribed Image Text:match the cations with the color of the precipitate that it will form INITIALLY when treated with hydroxide. NOTE : More than one might have the same color. Cu2*(aq) Reagent\lonCr3*lag) and initial colour Mn2* (aq)very Fe2+, pale pink - colourless N i2+ (aq) Mn2+, Fe3+ (aq) Co2+ C o2+ Z n2* (aq) (aq) (aq) green pale green yellow- (aq) blue colourless brown pink green initial N2OH(aq) white gel. ppt. of green gel. white gel. ppt. of blue dark green brown gel. green gel. blue ppt. but darkens with brown on oxidation gel. ppt.of turns Fe(OH)3 ppt. => gel. ppt. of Zn(OH)2 Cr(OH)3 ppt. that ppt. of Cu(OH)2 strong base/alkali oxidation Ni(OH)2 Mn(OH)2==>Fe(OH)2==> Mn203 ==> Fe(OH)3 MnO2 pink on standing Co(OH)2 no further effect - just effect - just further further further slight as above There is a ppt. dissolves - ppt. dissolves to give clear green with more solution of oxidation complex ion excess no further no no no NaOH(aq) as above with more just as clear solution, effect reaction, a colourlesscomplex ion effect - effect strong base/alkali deeper blue colour is seen, but, the hydroxide precipitate is effectively insoluble. See Copper Notes oxidation above (Zn(OH)4]²- with more oxidation [Cr(OH)6]3-
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