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Explain the observations obtained from the following experiments. Write the balanced...
Topic: ChemistryExplain the observations obtained from the following experiments. Write the balanced equations involved.(i) Anhydrous beryllium chloride is exposed to moist air; sodium hydroxide is then added to the solution. (ii) Aqueous sodium iodide is reacted with aqueous silver nitrate; aqueous ammonia is then added to the solution.
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ii. When anhydrous Beryllium chloride is exposed to air, it readily forms Beryllium hydroxide. The equation would be:
BeCl2 + 2H2O --> Be(OH)2 + 2 HCl
**H2O is the water in the air.
Now the solution will now be acidic so upon the addition of Sodium Hydroxide, the reaction will be neutralized. The neutralization equation is:
HCl + NaOH --> NaCl + H2O
ii. The reaction of Sodium iodide with Silver nitrate will produce a precipitate. The reaction equation can be written as:
NaI (aq) + AgNO3 (aq) ---> NaNO3 (aq) + AgI (s)
AgI is the precipitate in the solution.
When aqueous Ammonia is added, no visible changes will occur since ammonia cannot dissolve the precipitate AgI in the solution.
Posted by jerichorayel on November 27, 2012 at 2:52 PM (Answer #1)
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