Electrochemistry questions
1808 published questions with worked solutions.
- Which from the following concentrations of a weak electrolyte solution exhibits maximum molar conductivity?
- Consider the following cell Zn(s) |Zn^ 2+ _ (1M) |KCl_ (sat) |Hg_2Cl_2 (paste) | Hg If E^0 cell = 1.007 V and E^0 calomel = 0.242...
- If standard reduction potential (E^0) of ( Al^ +3 _ (aq) ,| , Al_ (s) ), ( Fe^ +2 _ (aq) ,| , Fe_ (s) ), ( Cu^ +2 _ (aq) ,| , Cu_...
- The graphical variation of molar conductivity ( ) against square root of molar concentration ( c ) of certain electrolyte 'X' is...
- The conductivity of 0.02 M of KCl solution at 298 K is 0.0123 ohm^ -1 cm^ -1 . If the resistance of the cell containing this...
- If emf of cell, Cu_ (s) |Cu^ 2+ _ (1M) || Ag^+_ (1M) |Ag is 0.463 V at 25^0C and standard potential of Cu electrode is 0.337 V....
- If standard reduction potential of four electrodes A, B, C, D are +2 5 V , +3 0 V , -2 0 V and -1 5 V respectively. When is the...
- If standard reduction potential of Zn, Ni and Fe are -0 76 V , -0.23 V and -0 44 V respectively. For the reaction (Stated below)...
- A galvanic cell consist copper electrode and standard hydrogen electrode. If E^ ( Cu^ +2 _ (aq) |Cu_ (s) ) = +0 34 V , then...
- For a certain redox reaction in galvanic cell X_ (s) + Y^ 2+ _ (aq) X^ 2+ _ (aq) + Y_ (s) , E^0 cell is 0.0296 V at 298 K. What...
- For a Galvanic cell consisting zinc electrode and standard hydrogen electrode, E^ 0 (Zn^ +2 _ (aq) Zn_ (s) ) = 0.76 V. Identify...
- What is the number of faraday required to form 1 mol H<sub>2</sub> by reduction of H<sup>+</sup> ions?
- For the cell, Zn_ (s) |Zn^ +2 (1M)||Ag^ + (1M)|Ag_ (s) If concentration of Zn^ +2 decreases to 0.1 M at 298 K, then emf of cell
- For the cell reaction, Zn_ (s) + 2Ag^ + _ (aq) Zn^ +2 _ (aq) + 2Ag_ (s) Cell potential is less than E^0 cell by 0.0592 V at 298 K...
- Which from following is the correct relationship between molar conductivity ( ), conductivity (k) and molarity (M) of solution...
- How long should aqueous NaCl be electrolysed by passing 100 ampere current, so that 0.5 mol chlorine is released at anode?
- What must be the molarity of BaCl_2 solution to have molar conductivity 240 ^ -1 cm^2mol^ -1 and conductivity 0.012 ^ -1 cm^ -1...
- What is molar conductivity of CH_3COOH at zero concentration if the molar conductivities of H_2SO_4 , K_2SO_4 and CH_3COOK at...
- During the electrolysis of aqueous NaCl the product formed at cathode is?
- What is the conductivity of 0.02 M AgNO_3 solution having cell constant 1.2 cm^ -1 and resistance 95.0 ohms ?
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