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) 5) a. A radioactive sample contains 3.39 pg of pure 11C, which has a half-life of 20.4 min. How many moles of 11C are
Posted: Fri Apr 29, 2022 11:38 am
by answerhappygod
- 5 A A Radioactive Sample Contains 3 39 Pg Of Pure 11c Which Has A Half Life Of 20 4 Min How Many Moles Of 11c Are 1 (31.85 KiB) Viewed 27 times
) 5) a. A radioactive sample contains 3.39 pg of pure 11C, which has a half-life of 20.4 min. How many moles of 11C are present ini- tially? The value of Avogadro's number is 6.02 x 1023 nuclei/mol. Answer in units of mol. b. Find the number of nuclei present initially. Answer in units of nuclei. C. Find the initial activity of the sample. Answer in units of Bq. d. Find the activity of the sample after 7.7 h. Answer in units of Bq.!