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Determine the total time that must elapse until only ¼ of an original sample of the radioisotope rn-222 remains unchanged.
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Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?
Answers: 2
Determine the total time that must elapse until only ¼ of an original sample of the radioisotope rn-...
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