225. Determine the benzene retention index if the following data are obtained under certain chromatographic conditions:
t’R n-hexane – 12.9 min.
t’R n-heptane – 16.4 min.
t’R n-octane – 20.1 min.
t'R of benzene – 17.8 min.

If the file does not open for you, install the Rar archiver program. Inside the archive, the solution is in WORD format.