Electrochemistry questions
1808 published questions with worked solutions.
- Calculate ^ _ HOAc using appropriate molar conductances of the electrolytes listed below at infinite dilution in H_2O at 25^ C: |...
- If the molar conductance values of Ca^ 2+ and Cl^- at infinite dilution are respectively 118.88 10^ -4 m ^2 mho mol ^ -1 and...
- ^ _ ClCH_2COONa = 224 ^ -1 cm ^2 g equiv ^ -1 ^ _ NaCl = 38.5 ^ -1 cm ^2 g equiv ^ -1 ^ _ HCl = 203 ^ -1 cm ^2 g equiv ^ -1 What...
- The resistance of N 10 solution is found to be 2.5 10^3 . The equivalent conductance of the solution is (cell constant = 1.25 cm...
- By diluting a weak electrolyte, specific conductivity (K_c) and equivalent conductivity ( _c) change as
- Molar conductance of an electrolytic solution _m is
- The one which decreases with dilution is
- Resistance of a conductivity cell filled with a solution of an electrolyte of concentration 0.1 M is 100 . The conductivity of...
- For strong electrolytes the plot of molar conductance ( _m) *vs* C is
- How long (in hours) must a current of 5.0 A be maintained to electroplate 60 g of calcium from molten CaCl_2 ?
- A current of 12 A is passed through an electrolytic cell containing aqueous NiSO_4 solution. Both Ni and H_2 gas are formed at...
- The cathodic reaction of a dry cell is represented by 2 MnO_2 (s) + Zn^ 2+ + 2e^- ZnMn_2O_4 (s) If there are 8 g of MnO_2 in the...
- Aluminium oxide may be electrolysed at 1000^ C to furnish aluminium metal (atomic mass = 27 u; 1 F = 96500 C). The cathode...
- The charge required to liberate one gram equivalent of an element is
- The amount of substance deposited by the passage of 1 A of current for 1 s is equal to
- What is the time (in sec) required for depositing all the silver present in 125 mL of 1 M AgNO_3 solution by passing a current of...
- On passing 0.5 F electricity through molten sodium chloride, sodium deposited at the cathode will be
- A silver cup is plated with silver by passing 965 C of electricity. The amount of Ag deposited is
- By passing 9.65 A current for 16 min 40 s, the volume of O_2 liberated at STP will be
- In the electrolysis of water, 1 F of electrical energy would evolve
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