1.

An aqueous solution of NaCl on electrolysis gives H_(2)(g), Cl_(2)(g) and NaOH according to the reaction. 2Cl^(-)(aq) 2H_(2)O 2OH^(-) (aq) + H_(2) (g) + Cl_(2)(g)

Answer»

SOLUTION :At ANODE`2C1^(-) to C1_2+2e^(-)`
At cathode
`2H_2O+2e^(-) toH_2+2oH^(-)`
` 1kg Cl_2=100/35.5 ` equivalent of `Cl_2=28.17` equivalent `implies` Thereforeelectricity requiremnt `=28.17 F`
Q EFFICENCY is only 62%
`THEREFORE` Electricity requirement (experimental)`=(28.17xx10)/(62)=F=45.44f`
`implies 45.44 xx96500=25t` (in second) `implies t=48.72 H`
Also, gram equivalent of `HO^(-)` produced `=28.17`
`implies` Molarity of `HO^(-)=28.17/20=1.4085 M`


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