Discuss (a) molar conductance and (b) equivalent conductance.
Define the terms resistance , resistivity , conductance and specific conductance. Write their units.
The resistance of 0.01N solution of an electrolyte AB at 328K is 100 ohm. The specific conductance of solution is ( cell constant =1 cm^(-1) )
Molar conductivity (^^_m) is defined as conducting power of the ions produced by 1 mole of an electrolyte in a solution. ^^_m =(K)/(C) where K is conductivity (in S-cm^(-1) ), ^^_m is molar conductivity (in Scm^(2) mol^(-1) ) and C is molar concontration (in "mole"//cm^(3) ) The molar conductivity of 0.04 M solution of MgCl_2 is 200Scm^2 mol^(-1) at 298 K. A cell with electrodes that are 2.0cm^(2) in surface area and 0.50 cm apart is filled with MgCl_2 solution. The cell constant is
The equivalent conductance of 1N solution of an electrolyte is nearly
Equivalent conductance of saturated BaSO_4 is 400 ohm^(-1) cm^(2) "equiv"^(-1) and specific conductance is 8 xx 10^(-5) ohm^(-1), cm^(-1) . Hence K_(sp) of BaSO_4 is
