chemistry

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Transfer the tablet to a clean 125-mL Erlenmeyer flask. Add 10-mL of 1M NaOH and heat the mixture to a gentle boil. Once the solution has cooled to room temperature, transfer it to a 100-mL vol. flask. Using the diluted solution from the 100-mL volumetric flask, rinse a 1-mL vol. pipet with a few
drops and then pipet exactly 1.00-mL into a 50-mL volumetric flask. Fill the 50-mL volumetric flask to the mark with acidic FeCl3 solution. then fill the cuvette about 2/3 full with the solution.
aspirin weighs .300g and the concentration is .250mol/mL. How do i use the concentration to go back to find exact mass of ASA in unknown aspirin

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