At 298 K, the standard reduction potential for Cu2+/Cu electrode is 0.34 V. Given Ksp of Cu(OH)2 = 1 × 10-20 and 2.303 RTF = 0.059 V, the reduction potential at pH = 14 for the above couple is (-)x × 10-2 V. The value of x is:

Calculate the oxidation potential (emf) of the given half-cell: Pt(s) | H2(g, 2 atm) | HCl(aq, 0.02 M) Given E°H2/H+ = 0 V, 2.303 RTF = 0.059, and log 2 = 0.3010.

A solution of copper sulphate is electrolysed for 10 minutes with a current of 1.5 amperes. The mass of copper deposited at cathode is: (Given: Molar mass of Cu = 63 g mol-1, 1 F = 96487 C mol-1)