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10.19. One hundred tubes are to be sterilized. Each tube contains 10 mL of fluid. The...

10.19. One hundred tubes are to be sterilized. Each tube contains 10 mL of fluid. The value of kd = 0.6 min–1. The tubes are sterilized for 20 min. Ten of the tubes showed growth of contaminants. What was the concentration of spores in the tubes?

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