08. Solving a chemistry problem

314. To determine the concentration of HI, use the dependence of the specific electrical conductivity χ on the acid content in the solution:

CHI, mol/l 0.004 0.007 0.015 0.030 0.060 0.121 0.243
χ*104, cm*cm-1 2.5 3.8 5.0 8.0 12.3 21.0 36.3

Using these data, construct a calibration graph in coordinates Ig(χ) – log(C) and use it to determine the concentration of HI if its specific electrical conductivity is 28.1*10-4 S cm-1, and 10 ml of acid was taken for determination.