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State and explain the observations made when a filter paper dipped in Lead(II) ethanoate /Lead (II) nitrate(V) solution is put in a gas jar containing...

State and explain the observations made when a filter paper dipped in Lead(II) ethanoate /Lead (II) nitrate(V) solution is put in a gas jar containing hydrogen sulphide gas

Answers

1. Observations
Moist Lead(II) ethanoate /Lead (II) nitrate(V) paper turns black.

2. Explanation
When hydrogen sulphide is bubbled in a metallic salt solution, a metallic sulphide is formed.
All sulphides are insoluble black salts except sodium sulphide, potassium sulphide and ammonium sulphides.
Hydrogen sulphide gas blackens moist Lead (II) ethanoate /Lead (II) nitrate(V) paper .
The gas reacts with Pb²⁺ in the paper to form black Lead(II)sulphide

Wilfykil answered the question on February 19, 2019 at 08:38

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