The conductivity of 0.01 M solution of sodium hydroxide is 2.48 × 10-3 S cm-1. The molar conductivity of sodium hydroxide at 0.01 M concentration is
0.248 S cm2 mol-1
4.03 Ω-1 cm-2 mol-1
4.03 × 10-3 S-1 cm2 mol-1
248.0 S cm2 mol-1
Λm=κ/c=2.48×10−3Ω−1cm−1/0.01×10−3mol cm3=248Scm2mol−1