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Standard VII
Physics
Current
How many fara...
Question
How many faradays/coulombs are required to produce (i)20 g of calcium from molten CaCl2?(ii)40 g of aluminium from molten Al2O3?
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Similar questions
Q.
How much electricity in terms of Faraday is required to produce:
(i)
20
g
of
C
a
from molten
C
a
C
l
2
(ii)
40
g
of
A
l
from molten
A
l
2
O
3
[Given : Molar mass of calcium & Aluminium are 40 g
m
o
l
−
1
& 27 g
m
o
l
−
1
respectively]
Q.
How much electricity in terms of Faraday is required to produce
40.0
g
of
A
l
from molten
A
l
2
O
3
?
Q.
How many faradays of electricity will be required to completely electrolyse one mole of molten
A
l
2
O
3
to produce
A
l
metal and
O
2
gas?
Q.
How much electricity in terms of faraday is required to produce 20 grams of calcium from molten calcium chloride?
Q.
How many Faradays of electricity are required to deposit 10 g of calcium from molten calcium chloride using inert electrodes? (molar mass of calcium = 40 g
m
o
l
−
1
)
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