Chemistry, 22.11.2019 19:31 trentvw1174
Half-life problems:
(a) hg-197 has a half-life of 64 hours. if you have 164g of hg-197 today, how much will you have in 448 hours?
(b) 263 minutes ago we had 5.12g of i-134 and now we only have 0.16g. how long is the half-life of i-134?
(c) c-14 has a half-life of 5730 years. if animal remains are found to have 1/16 of the amount of c-14 found in animals living today, how old are the remains?
(d) an average smoke detector for domestic use contains about 0.29 micrograms of
am-241 which has a half-life of 432 years. how long would it take to decay to 0.0725 micrograms? (3 pts)
Answers: 1
Chemistry, 21.06.2019 16:30, lil3114
Imagine that you own a property that is exactly 2.2 acres large. you want to sell your property, but your realtor tells you that you cannot sell your land by the acre. in order to sell your land you need to determine the area you own in units of square meters? given that there are 1.6 kilometers in 1 mile and 640 acres in 1 square mile, what is the area of land that you own in square meters square meters?
Answers: 2
Chemistry, 23.06.2019 01:20, hflores0001
How can parts of a solution be separated by chromatography?
Answers: 1
Half-life problems:
(a) hg-197 has a half-life of 64 hours. if you have 164g of hg-197 today,...
(a) hg-197 has a half-life of 64 hours. if you have 164g of hg-197 today,...
Mathematics, 03.04.2021 23:30
History, 03.04.2021 23:30
Mathematics, 03.04.2021 23:30
Physics, 03.04.2021 23:30