Question

How long will it take to produce 2.415 g of Ag metal from its salt solution by passing a current of 3A? How many moles of electrons are required? Molar mass of Ag is 107.9 g mol⁻¹.

Answer 1

Final Answer : Equivalent Mass of Metal : 107.92g

Steps and Understanding :
1) Let the metal be M such that
M + 1/2 Cl2 ------> MCl
as shown in pic.

Mass of M = 0.456g
Mass of MCl = 0.606g

2) Let the Molecular mass of Metal M be (x) .

Now, By reaction
No. of moles of M = No. of moles of MCl

3) No. of electrons loses by M in reaction is 1 .
So, Equivalent mass of M is
107.92 / 1
= 107.92 g

Answer 2

Answer:

time required is 12min

and moles of electron required is 0.02238mol e-