Answer to Question #149722 in General Chemistry for hey

Question

If x electrons are needed to displace 108g silver from a solutions which contains Ag+ ions, how many electrons are needed to displace 9g of aluminium from a solutions which contain Al3+ ions?

Answer 1

Ag⁺ + e = Ag

Explanation :

Eag = atomic mass /1 = 108g

No. Of faradays = Wag/ Eag

= 108g / 108g

= 1 Faraday

1 Faraday of charge discharges E gram of an ion, where E is the equivalent weight. For silver, the value of E is 108 g. 
Thus, the amount of electricity that can deposit 108 g of silver form AgNO3​ solution is one Faraday.