Silver nitrate crystals are dissolved in distilled water and not in ta

1.	Silver nitrate crystals are dissolved in distilled water and not in tap water in order to prepare a solution of silver nitrate as a laboratory reagent. Why ?
Answer» Tap water always contains some amount of dissolved sodium chloride. Thus when the solution of silver nitrate is prepared in tap water, it reacts to form curdy white precipitate of silver chloride. AgNO₃ + NaCl → AgCl + NaNO₃ To prevent the above chemical reaction, the solution of silver nitrate is prepared in distilled water.

Silver nitrate crystals are dissolved in distilled water and not in tap water in order to prepare a solution of silver nitrate as a laboratory reagent. Why ?

Answer»

Tap water always contains some amount of dissolved sodium chloride. Thus when the solution of silver nitrate is prepared in tap water, it reacts to form curdy white precipitate of silver chloride.

AgNO₃ + NaCl → AgCl + NaNO₃

To prevent the above chemical reaction, the solution of silver nitrate is prepared in distilled water.

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Silver nitrate crystals are dissolved in distilled water and not in tap water in order to prepare a solution of silver nitrate as a laboratory reagent. Why ?

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