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What is the mass % of caffeine in the following solution: A stock solution of 1000 mg caffeine/L is to be prepared. 0.10 g of
What is the mass % of caffeine in the following solution: A stock solution of 1000 mg caffeine/L is to be prepared. 0.10 g of caffeine must be mixed with 15 mL of methanol and diluted in a 100 mL flask. Hint: in the stock solution, the mass percentage of methanol is approx. 14%.
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