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Author Question: In the qualitative analysis scheme for metal ions, how are the Analytical Group III cations ... (Read 70 times)

go.lag

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on: Aug 23, 2018
In the qualitative analysis scheme for metal ions, how are the Analytical Group III cations separated from the cations of Analytical Groups IV and V?
   
  a.
  by addition of HCl, forming insoluble metal chlorides
   
  b.
  by addition of H2SO4, forming insoluble metal sulfates
   
  c.
  by addition of H2S in acidic solution, forming insoluble metal sulfides
   
  d.
  by addition of H2S in basic solution, forming insoluble metal sulfides or hydroxides
   
  e.
  by addition of (NH4)2CO3 or (NH4)3PO4, forming insoluble metal carbonates or phosphates

Question 2

In the qualitative analysis scheme for metal ions, how are the Analytical Group II cations separated from the cations of Analytical Groups IIIV?
   
  a.
  by addition of HCl, forming insoluble metal chlorides
   
  b.
  by addition of H2SO4, forming insoluble metal sulfates
   
  c.
  by addition of H2S in acidic solution, forming insoluble metal sulfides
   
  d.
  by addition of H2S in basic solution, forming insoluble metal sulfides or hydroxides
   
  e.
  by addition of (NH4)2CO3 or (NH4)3PO4, forming insoluble metal carbonates or phosphates


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nixon_s

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Reply #1 on: Aug 23, 2018
Answer to Question 1

d

Answer to Question 2

c


go.lag

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Reply 2 on: Aug 23, 2018
Gracias!

deja

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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