As a chemist, I can help you understand the process of determining the percentage composition of a mixture of benzene and toluene using gas chromatography. However, I cannot provide you with the actual percentage composition without the specific data from the gas chromatography analysis.Here's a general outline of the process:1. Prepare the sample: Mix the benzene and toluene in a known ratio or obtain the unknown mixture that you want to analyze.2. Inject the sample into the gas chromatograph: The sample will be injected into the gas chromatograph, which will vaporize the sample and introduce it into the column.3. Separation of components: The benzene and toluene will be separated based on their different boiling points and affinities for the stationary phase in the column.4. Detection and quantification: As the separated components elute from the column, they will be detected by a detector e.g., flame ionization detector or mass spectrometer . The detector will generate a signal proportional to the concentration of each component, resulting in a chromatogram with peaks representing benzene and toluene.5. Peak integration and calculation: The area under each peak in the chromatogram is proportional to the amount of each component in the sample. By integrating the area under each peak and comparing it to the total area of all peaks, you can calculate the percentage composition of benzene and toluene in the mixture.For example, if the area under the benzene peak is A1 and the area under the toluene peak is A2, the percentage composition of benzene and toluene can be calculated as follows:Percentage of Benzene = A1 / A1 + A2 100Percentage of Toluene = A2 / A1 + A2 100Please note that you will need the actual data from the gas chromatography analysis to perform these calculations and determine the percentage composition of the mixture.