Last seen: Jan 13, 2022
At anode : Zn(s) → Zn2+(aq) + 2e- At cathode : 2H+ + 2e- → H2(g) Zn(s) + 2H+(al) → Zn2+(aq) + 2e-
At anode : Zn (amalgam) + 2OH- → ZnO + H2O + 2e- At cathode : HgO (s) + H2O (l) + 2e- → Hg (l) + 2OH- (aq) The overall reaction is : Zn (amalgam)...
It states that at infinite dilution, molar conductivity of an electrolyte is equal to sum of contributions due to cation as well as anion. Ʌm(Na2SO4...
At cathode : O2(g) + H2O + 4e- → 4OH-(aq) At anode : 2H2(g) + 4OH-(aq) → 4H2O + 4e- The overall reaction is : 2H2(g) + O2(g) → 4H2O(l)
Cell constant = Conductivity x Resistance = 0.146 x 10-3 S cm-1 x 1500Ω = 0.219 cm-1
Conductivity is defined as ease with which current flows through electrolyte. It is reciprocal of specific resistance. Molar conductivity is conductan...
Fe2+→ Fe3+ + 1e- So, 1F = 1 x 96500 C = 96500 C
A paste of NH4Cl.
Corrosion is the slow eating away of the surface of the metal due to attack of atmospheric gases. Fe2O3.xH2O.
Zinc protects better because oxidation of zinc is greater but that of tin is less than that of iron.
SHE, whose electrode potential is taken as zero.
When Al-NaCl solution is electrolysed, H2 is liberated at cathode, Cl2 at anode and NaOH is formed in the solution. Hence pH of solution increases.
Methane and methanol.
Conductivity of a solution is dependent on the number of ions per unit volume. On dilution, the number of ions per unit volume decreases, hence the co...
ZnCl2 combines with the NH3 produced to form a complex salt [Zn(NH3)4]2+.
This is because the overall cell reaction does not have any ionic can concentration in it.
To complete the inner circuit and to maintain electrical neutrality of the electrolytic solutions of the half cells.
Molar conductivity of weak electrolytes keeps on increasing with dilution and does not become constant even at very large dilution.
It is used for the in flow and out flow of electrons.