A Problem on Salt Analysis! 3

Chemistry Level 4

( A ) (A) is a salt with divalent cation. ( A ) (A) gives yellow ppt with K X 2 C r O X 4 \ce{{K}_{2}Cr{O}_{4}} as well as with A g N O X 3 \ce{AgN{O}_{3}} . ( A ) (A) gives green colour in flame. ( A ) (A) is precipitated by H X 2 S \ce{{H}_{2}S} neither in acidic nor ammonical medium, but addition of ( N H 4 ) X 2 C O X 3 \ce{{(N{H}_{4})}_{2}C{O}_{3}} in N H X 4 O H \ce{N{H}_{4}OH} gave white ppt ( B ) (B) . 0.297 g 0.297\text{ g} of ( A ) (A) gave 0.197 g 0.197\text{ g} of ( B ) (B) . Find the molecular mass of ( A ) (A) .

Two more problems on Salt Analysis are as follows:

  1. A Problem on Salt Analysis!

  2. A Problem on Salt Analysis! 2


The answer is 297.

Saarthak Marathe by Saarthak Marathe , 22, India

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1 solution

Ayushmaan Seth
Oct 15, 2016

A- Barium Bromide Coz Barium Chromate and Silver Bromide are both yellow precipitates. Also Barium gives apple green flame. B-Barium Carbonate

0 Helpful 0 Interesting 0 Brilliant 0 Confused

What about barium chloride. I Remember having the same results when doing the practical.

Jaya Krishna - 4 years ago

Unless there is some cause to why the reactions may/may not take place. One can also assume this to be BaI2 (Barium Iodide) as AgI also a yellow ppt.

You should mention the Bromine is the anion here only because of the calculations done using the final data given in the problem.

Tapas Mazumdar - 3 years, 4 months ago

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