As a chemist, I can help you understand the process of determining the composition of a mixture containing benzene, toluene, and xylene using gas chromatography GC analysis. However, I cannot provide specific numerical results without actual data. Here's a step-by-step guide on how to analyze the composition using GC:1. Prepare the sample: Take an aliquot of the mixture and dilute it with a suitable solvent e.g., hexane to a concentration within the linear range of the GC detector.2. Set up the GC instrument: Choose a suitable GC column, such as a non-polar column e.g., a 5% phenyl-methylpolysiloxane column to separate the aromatic compounds. Set the appropriate oven temperature program, flow rate, and detector settings e.g., flame ionization detector or mass spectrometer .3. Run calibration standards: Prepare a series of calibration standards containing known concentrations of benzene, toluene, and xylene in the same solvent used for the sample dilution. Inject these standards into the GC and record their retention times and peak areas.4. Create a calibration curve: Plot the peak area y-axis against the concentration x-axis for each compound. Perform a linear regression to obtain the calibration equation y = mx + b for each compound, where m is the slope, and b is the intercept.5. Analyze the sample: Inject the diluted sample into the GC and record the chromatogram. Identify the peaks corresponding to benzene, toluene, and xylene based on their retention times.6. Calculate the concentrations: Use the peak areas of benzene, toluene, and xylene in the sample chromatogram and their respective calibration equations to calculate their concentrations in the diluted sample.7. Determine the composition: Calculate the mass or volume percentage of each compound in the original mixture using the concentrations obtained in step 6 and the dilution factor.Please note that this is a general outline of the process. Specific details may vary depending on the equipment and conditions used. If you have actual data from a GC analysis, I can help you interpret the results and calculate the composition of the mixture.