Flow in an Electrical Field Conduction

1 Determine the equivalent conductivity at infinite dilution of the following solutions using Kohlrausch s law of independent migration. 

2 When most people lie or make an untrue statement their sympathetic nervous system becomes active (fight or flight response). This leads to increased sweat secretion and thus decreased skin resistance. In a lie detector, a current is passed between two silver chloride electrodes held at 5 v. A current of 4.2 mA is measured when the subject gives his name. Later in the interview he lies and a current of 8.9 mA is measured. What is the skin resistance in the (a) honest and (b) dishonest state  

3 The sodium ion is essential to cell signaling in excitable cells. It moves across the charged cell membrane which is an environment of intense electrical fields. Calculate the drift velocity for sodium under the field condition of die transmembrane potentials before depolarization [-80 mV], at full discharge [-1-50 mV] and during hyperpolarization [-90 mV]. Assume the ion is unhydrated. Use the properties of bulk water at 310 K as necessary. 

4 Wliat will happen to the drift velocities for the ions in Q.22.3 when the ions are hydrated  

5 What are the primary differences between a true and potential electrolyte Q.22.6 Does temperature alter the conductivity of ionic solutions Why or why not Q.22.7 Using the data from Fig. 23.6 and Table 23.1, estimate the equilibrium 

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