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(i) Define specific and molar conductivity and give relation between them. (ii) Calculate molar conductance of acetic acid at infinite dilution (^^_(m)^(@)). If molar conductance at infinite dilution ofNaCl, HCl and CH_(3)COONa are 126.4, 426.1 and 91.0ohm^(-1)cm^(2)mol^(-1) respectively. |
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Answer» Solution :(i) Specific conductivity. It is the conductance of loc solution of the ELECTROLYTE. It is DENOTED by K. MOLAR conductivity. It is the conducting power of all the ions present in a solution containing 1 mole of the electrolyte. It is denoted by `^^_(m)` `^^_(m)=(kxx1000)/("Molarity")` (ii) `^^_(m)^(@)(CH_(3)COOH)=^^_(m)^(@)(CH_(3)COONa)+^^_(m)^(@)(HCL)-^^_(m)^(oo)(NaCl)` `=91+426.1-126.4` `=390.7omh^(-1)cm^(2)mol^(-1)` |
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