The Half-Life of Osmium-193 Is 30

question 50

Multiple Choice

The half-life of osmium-193 is 30.1 hr.How many milligrams of a 60-mg sample remains after 40.5 hours?

• A) 23.6 mg
• B) 63.4 mg
• C) 21.8 mg
• D) 25.7 mg
• E) 43.2 mg

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