Using Kohlrausch law, calculate `Lambda_0` for acetic acid, if `Lambda_0` value for hydrochloric acid, sodium chloride and sodium acetate are respectively 426, 126 and 91 `S cm^(2) mol^(-1).`

Explanation

`Lambda_0 ` of acetic acid = `Lambda_0` of`CH_3COO^(-) + Lambda_0 "of " H^(+) = `
`Lambda_0 " of " HCl + Lambda_0 " of " CH_3COONa - Lambda_0 " of " NaCl `
`= 426 + 91 - 126`
`= 391 S cm^(2) mol^(-1)`.