B is 1.86x10^17
Posted: Fri Apr 29, 2022 12:07 pm
B is 1.86x10^17
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 initially? 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./
- B Is 1 86x10 17 1 (29.35 KiB) Viewed 26 times
- B Is 1 86x10 17 2 (29.35 KiB) Viewed 26 times