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A sample of lead containing Ag as impuri...

A sample of lead containing Ag as impurity welghing 0.8g was dissolved in a small quantity of nitric acid to produce an aqueous solution of `Pb^(2+) and Ag^*.` The volume of the solution was increased to 250 ml by addition of water. A pure silver electrode was immersed in the solution and the potential difference between this electrode and a standard hydrogen Belectrode is 0.50V at `25^@C.` Calculate the percentage of silverin the sample.

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The correct Answer is:
0.00175
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