The ratio of the peak areas on a gas chromatogram most accurately reflects which

Question

The ratio of the peak areas on a gas chromatogram most accurately reflects which of the following ratios between the two compounds? Mole Ratio Mass Ratio Volume Ratio None of the Above The factor that most directly affects retention time of a compound is... Melting Point Solubility in Water Boiling Point Solubility in DCM What are the boiling points of the two products of the elimination reaction? 2-methyl-1-butene. degree C 2-methyl-2-butene: Imagine that you run a mixture of the methylbutene products through GC and you find two large peaks. One peak has a retention time of 2.52 minutes and the other peak has a retention time of 2.58 minutes. What is likely the identity of the compound responsible for the First Peak? 2-methyl-1-butene 2-methyl-2-butene What is likely the identity of the compound responsible for the Second Peak? 2-methyl-1-butene 2-methyl-2-butene Which peak will most likely have the largest area for the... Elimination with KOH? Peak 1

Explanation / Answer

The ratio of the peak areas on a gas chromatogram most accurately reflets which of the

Measuring the area of a peak by geometrical approximation as follows:

Approximate area = h x w1/2

h -- the height of the peak above the baseline

w1/2--the width of the peak at half of it height

for example peak A = area of peak A/ total area *100

for example peak B = area of peak B/ total area *100

Hence the ratio of the areas is the same as the ratio of the weights. Thus the correct answer is mole ratio

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