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A current of 0.5 amperes is passed for 3...

A current of 0.5 amperes is passed for 30 minute through a voltmeter containing `CUSO_4` Solution. Calculate the mass of Cu deposited at the cathode

A

3.18 g

B

0.318 g

C

0.296 g

D

0.150 g

Text Solution

Verified by Experts

The correct Answer is:
C
`W=ZxxIxxt`
`Z=(E)/(96500)=(Mol.wt.//2)/(96500)` [for copper, E=mol. Wt/2]
Given, current passed=0.5A
time=30mins=`30xx60s`
`W=(63.5)/(2)xx(1)/(96500)xx0.5xx30xx60=0.296g`.
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