Question

What happen when hydrogen sulphide gas is passed through lead acetate solution

Answer 1

H2S + Pb(CH3COO)2 = PbS + CH3COOH PbS - lead sulfide - insoluble black precipitate

Answer 2

When hydrogen sulfide gas is passed through a lead acetate solution, it leads to the formation of black color precipitate of Lead sulfide.

Explanation:

• The reactants involved in the given reaction are hydrogen sulfide and lead acetate.
• The chemical formula of the reactants are as follows:

1. Hydrogen sulfide - $H_2S$
2. Lead acetate - $Pb(CH_3COOH)_2$

• When $H_2S$ is passed through $Pb(CH_3COOH)_2$, the double displacement with the following chemical equation occurs:

$Pb(CH_3COOH)_2+H_2S\rightarrow PbS+2CH_3COOH$

• From the above equation, it is clear that the reaction yields two product namely leads sulfide and acetic acid.

• As PbS is formed as one of the product, it accounts for the black color precipitation formed during the reaction.

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