
a)
Interpretation:
From the Table 24-2, the elution order of Hexane, Heptane, Octane, Benzene, Butanol and 2-pentanone has to predicted from the column containing Poly(dimethylsiloxane).
Concept Introduction:
Kovats retention index:
Retention index, I for linear
For a molecule of Octane,
For a molecule of Nonane,
The elution of compound between Octane and Nonane will have retention index between 800 and 900 is calculated using the formula,
Where,
To predict the elution order of Hexane, Heptane, Octane, Benzene, Butanol and 2-pentanone from the column containing Poly(dimethylsiloxane)
b)
Interpretation:
From the Table 24-2, the elution order of Hexane, Heptane, Octane, Benzene, Butanol and 2-pentanone has to predicted from the column containing
Concept Introduction:
Kovats retention index:
Retention index, I for linear alkane equals 100 times the number of Carbon atoms.
For a molecule of Octane,
For a molecule of Nonane,
The elution of compound between Octane and Nonane will have retention index between 800 and 900 is calculated using the formula,
Where,
To predict the elution order of Hexane, Heptane, Octane, Benzene, Butanol and 2-pentanone from the column containing
c)
Interpretation:
From the Table 24-2, the elution order of Hexane, Heptane, Octane, Benzene, Butanol and 2-pentanone has to predicted from the column containing poly(ethylene glycol).
Concept Introduction:
Kovats retention index:
Retention index, I for linear alkane equals 100 times the number of Carbon atoms.
For a molecule of Octane,
For a molecule of Nonane,
The elution of compound between Octane and Nonane will have retention index between 800 and 900 is calculated using the formula,
Where,
To predict the elution order of Hexane, Heptane, Octane, Benzene, Butanol and 2-pentanone from the column containing poly(ethylene glycol)

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Chapter 24 Solutions
Quantitative Chemical Analysis
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- Determine if the following salt is neutral, acidic or basic. If acidic or basic, write the appropriate equilibrium equation for the acid or base that exists when the salt is dissolved in aqueous solution. If neutral, simply write only NR. Be sure to include the proper phases for all species within the reaction. N₂H₅ClO₄arrow_forwardPlease help me with identifying these.arrow_forwardCan I please get help with this?arrow_forward
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