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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: rr13 on April 11, 2013, 06:04:27 PM

Title: Rechargable battery, based on concentration. How long will it run for? Need HELP
Post by: rr13 on April 11, 2013, 06:04:27 PM

A rechargable battery is constructed based on the concentration cell of two Ag/Ag+ half-cells
The volume of each half-cell is 2.0 L and the concentration of Ag+ in the half-cells are 1.25M and 1.0x10^-3 M

A) How long can this battery deliver 2.5 A of current before it goes dead

2) What is the mass of silver being plated on the cathode by running 3.5 A for 5.5 Hours

3) Upon recharging how long would it take to redissolve 1.00x10^2 g of silver at charging current of 10.0 Amps

I've been trying really hard, can't seem to get started, any help would be appreciated ::)

Title: Re: Rechargable battery, based on concentration. How long will it run for? Need HELP
Post by: Borek on April 12, 2013, 02:59:32 AM

Direct application of the Faraday's law of electrolysis.