pentanol: 34.13 2,3-dimethyl-2-butanol: 44.06 If the concentration of pentanol in the unknown solution of is 18.3 mM, what is the 2,3-dimethyl-2-butanol concentration? concentration: mm² 133.68 mM

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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pentanol:
34.13
2,3-dimethyl-2-butanol: 44.06
mm²
If the concentration of pentanol in the unknown solution of is 18.3 mM, what is the 2,3-dimethyl-2-butanol concentration?
concentration: 133.68
mm²
mM
Transcribed Image Text:pentanol: 34.13 2,3-dimethyl-2-butanol: 44.06 mm² If the concentration of pentanol in the unknown solution of is 18.3 mM, what is the 2,3-dimethyl-2-butanol concentration? concentration: 133.68 mm² mM
This question applies to the separation of a solution containing pentanol (MM 88.15 g/mol) and 2,3-dimethyl-2-butanol
(MM 102.17 g/mol). Pentanol is the internal standard.
Separation of a standard solution containing 213 mg of pentanol and 261 mg of 2,3-dimethyl-2-butanol in 10.0 mL of solution
led to a pentanol:2,3-dimethyl-2-butanol relative peak area ratio of 0.895:1.00. Calculate the response factor, F.
for 2,3-dimethyl-2-butanol.
F =
0.876
Calculate the areas for pentanol and 2,3-dimethyl-2-butanol gas chromatogram peaks in an unknown solution. For pentanol, the
peak height is 29.9 mm and the width at half-height is 1.07 mm. For 2,3-dimethyl-2-butanol, the peak height is 38.6 mm and
the width at half-height is 4.54 mm. Assume each peak to be a Gaussian.
pentanol:
34.13
mm²
Transcribed Image Text:This question applies to the separation of a solution containing pentanol (MM 88.15 g/mol) and 2,3-dimethyl-2-butanol (MM 102.17 g/mol). Pentanol is the internal standard. Separation of a standard solution containing 213 mg of pentanol and 261 mg of 2,3-dimethyl-2-butanol in 10.0 mL of solution led to a pentanol:2,3-dimethyl-2-butanol relative peak area ratio of 0.895:1.00. Calculate the response factor, F. for 2,3-dimethyl-2-butanol. F = 0.876 Calculate the areas for pentanol and 2,3-dimethyl-2-butanol gas chromatogram peaks in an unknown solution. For pentanol, the peak height is 29.9 mm and the width at half-height is 1.07 mm. For 2,3-dimethyl-2-butanol, the peak height is 38.6 mm and the width at half-height is 4.54 mm. Assume each peak to be a Gaussian. pentanol: 34.13 mm²
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