Fint-order chemical reactions In some chemical reactions, the rate at which the amount of a substance changes with time is proportional to the amount present For the chaoge of B-glucono lactooe into gluconic acid, for example, dy dt = -0.6y when t is measured in hours. If there are 100 grams of B-glucono lactooe present when t = 0, how many grams will be left after tlte first hour?
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