Calculate the mass, in kilograms, of magnesium produced b...
Calculate the mass, in kilograms, of magnesium produced by the electrolysis of magnesium (II) chloride in a cell operating for 24 hours at 500 amperes.
2.7
5.4
10.8
21.7
Correct answer is B
Mg + 2e → 24 gms
2f → 24 gms
2 x 96,500 → 24 gms
Q = (500 x 1440 x 60)
Q = 4320000 C
1 mole of mg = (1) / (2 x 96,500) x (43200000) / (1)
= (24)/(1) = (1036800000) / (193000) = 5372.020725 gms
in leg = (5372.020725) / (1000) = 5.4 leg
What is the chemical symbol for Xenon? ...
An element with the electron configuration of 1s 22s 22p 6 would have a combining power of...
Catalytic hydrogenation of benzene produces? ...
What process is illustrated below? S(s) ⇌H2O⇌ S (aq) ...
The collision theory explains reaction rates in terms of ...
Ordinary glass is manufactured from silica, CaCO3 and...
Which of the following can be obtained by fractional distillation? ...