Some Basic Concepts Of Chemistry Question 141

Question: A silver coin weighing 11.34 g was dissolved in nitric acid. When sodium chloride was added to the solution all the silver (present as $ AgNO _3 $ ) was precipitated as silver chloride. The weight of the precipitated silver chloride was 14.35 g. Calculate the percentage of silver in the coin -

Options:

A) 4.8%

B) 95.2%

C) 90%

D) 80%

Show Answer

Answer:

Correct Answer: B

Solution:

[b] $ \underset{108}{\mathop{Ag}},+2HNO _3\to AgNO _3+NO _2+H _2O $ $ AgNO _3+NaCl\to AgCl+NaNO _3 $



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