What happens when hydrochloride is added

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06-02-2020
Biology

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What happens when hydrochloride is added

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jacknjill jacknjill · Answer 1 · 2020-02-13T04:45:58+01:00

Answer:

"Hydrogen gas and iron chloride are produced" happens when hydrochloride is added.

Explanation:

The iron chloride & hydrogen gas (with bubble formation) is generated by adding hydrochloric acid to the iron filings. The iron displaces hydrogen from hydrochloric acid to form iron (II) chloride & hydrogen gas. That is a single displacement reaction.The reaction is given as follows: Fe+2HCl⟶FeCl2 + H2 .

Further to conform that only these products are formed some analysis is done of the resulting solution and gas formed:

A pH measurement demonstrates that the solution becomes less acidic, thus hydrogen ions have been consumed.
The addition of silver nitrate results in the formation of a white precipitate indicating that the chloride ions are still present in solution.