What mass of copper would be deposited by a current of 1....
What mass of copper would be deposited by a current of 1. 0 ampere passing for 965 seconds through copper (ll) tetraoxosulphate (IV) solution? [Cu = 63.5; 1F = 96500C]
0.318g
0.635g
18g
6.35g
9.65g
Correct answer is A
Cu2+ + 2e- → Cu, From the equation 2 Faraday will liberate 63.5gm of copper The quantity of electricity passed (Q) Q = 1. 0 965 = 965 coulomb :. 2 x 96500 → 63.5, 965 → x. x = 965 / 2x96500 x 63.5 = 0.3175g ≈ 0.328
A metal that is widely used in the manufacture of paints and overhead electric cables is ...
A metal X forms two chlorides with the formulae XCI2 and XCI3. Where is X in the Periodic Table?...
The hottest part of the gas flame is known as ...
The type of energy changes that accompany the mixing of a strong acid to a strong base is ...
S block elements of the periodic table one made up of ...
The equation P = KV illustrates...
A major effect of oil pollution in coastal waters is the? ...