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Faraday's First Law

Silver is ele...

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Silver is electro deposited on a metallic vessel of surface area 800 CM square by passing a current of .2 ampere 3 hours calculate the thickness of silver deposited given that its density is 10. 47 gram per centimetre cube

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Q. How much time is required to deposit

1 \times 10^{- 3}

cm thick layer of silver(density is

1.05

c m^{- 3}

) on a surface of area

100

c m^{2}

by passing a current of

5

A g N O_{3}

2 c m

0.4 c m

diameter was placed in

A g N O_{3}

solution through which a

0.2 a m p e r e

current was passed for

10

minute to deposit silver on the pin. The pin was used by a surgeon in lachrymal duct operation. The density of silver and electrochemical equivalent are

1.05 \times 10^{4} k g m^{- 1}

1.118 \times 10^{- 6} k g / c o u l o m b

respectively. What is the thickness of silver deposited on the pin? Assume that the tip of the pin contains negligible mass of silver.

Q. The current efficiency of an electro deposition of copper metal in which 9 g of copper is deposited by passing a current of 3 ampere for 2 hours 40 minutes and 50 seconds is:

Q. How much quantity of silver is deposited when the current of one ampere passes per second through the circuit?

Q. A current of

3

amperes was passed through silver nitrate solution for

125

seconds. The amount of silver deposited at cathode was

0.42 g

. Calculate the equivalent mass of silver.

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