Basic concepts/knowledge testing: (a) In an electrochemical system, when the rea

Question

Basic concepts/knowledge testing: (a) In an electrochemical system, when the reaction reaches electrochemical equilibrium, (b) For the oxidization and reduction half reactions physically separated what connects them to maintain an overall charge balance? (c) For the reduction half reaction 2H^+ (aq) 2c^- rightarrow H_2 (g). E degree is defined as o to this is reaction of what (name)? (d) Based on Debye-Huckel limiting law, which pair of solutions have different properties, dilute NaCl and dilute KBr solutions, or dilute NaCl and dilute CaSO_4 solutions? (e) Electrolyte is defined as ionic solutes and conductivity of i solutions is due to movement of what?

Explanation / Answer

Q5.

a. In equilibrium, all species' chemical potential addition must be equal to zero, in order to have an equilibrium

b. A salt bridge connects it so the charges balance, i.e. ion flow

c. This is the standard reduction of Hydrogen

d. dilute NaCl and CaSO4, since Na Cl have +1 -1 charges and Ca+2 and SO4-2 different charges

e. electrons

f.

F = k*Q1*Q2/d^2 = (8.98755*10^9)(1.6*10^-18)(3.3*10^-19)/(10^-9)^2 = 4.745*10^9 N

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