Chemistry, 23.04.2021 05:30 rayastransformers
A sample of iodine-131 has an activity of 200 mCi. If the half-life of iodine-131 is 8.0 days, what activity is observed after 16 days?
0.5 half lives
Step [1]: Determine the number of half lives.
x 128
5.88 x10-37
mci
16 days
128 half lives
2 half lives
80 half lives
1 day
Step [2]: Find the final activity.
50.0 mci
200. mci
200. mci
(initial activity)
Answers: 1
Another question on Chemistry
Chemistry, 22.06.2019 11:30
Determine the reaction and balance the following equations urgent due in the morning
Answers: 2
Chemistry, 22.06.2019 13:00
How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide
Answers: 2
Chemistry, 22.06.2019 14:10
13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.
Answers: 1
Chemistry, 22.06.2019 18:00
Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology
Answers: 2
You know the right answer?
A sample of iodine-131 has an activity of 200 mCi. If the half-life of iodine-131 is 8.0 days, what...
Questions
Biology, 10.04.2021 09:50
Mathematics, 10.04.2021 09:50
Mathematics, 10.04.2021 09:50
Mathematics, 10.04.2021 09:50
English, 10.04.2021 09:50
Social Studies, 10.04.2021 09:50
Mathematics, 10.04.2021 09:50
Mathematics, 10.04.2021 09:50
Chemistry, 10.04.2021 09:50
Mathematics, 10.04.2021 09:50
Biology, 10.04.2021 09:50
Physics, 10.04.2021 14:00
