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  • Find the mass of silver liberated in a silver voltameter carrying a current of 1.5A, for 15 minutes. The electrochemical equivalent of silver is <img alt="1.12 * 10^-6 kg/C" src="https://entra

Find the mass of silver liberated in a silver voltameter carrying a current of 1.5A, for 15 minutes. The electrochemical equivalent of silver is 1.12 * 10^-6 kg/C.

Option: 1

0.30g


Option: 2

7.6g


Option: 3

8.6g


Option: 4

7.6 * 10^{-2}g


Answers (1)

best_answer

Given:

i = 1.5 A

Z=1.12 * 10^{-6} kg/C

t = 15 minutes = 15 * 60 sec = 900 sec

Using the equation

        mass = ZIt

                       = 1.12 * 10^{-6} \frac{kg}{C}* 1.5 \frac{C}{s}* 900 s

                        = 3.024 * 10^{-4} kg

                        = 3.024 * 10^{-4} * 10^3 g

                        = 0.3024 g = 0.30 g

Posted by

Anam Khan

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