The half-life of krypton-91 (91Kr) is 10 s. At time to a heavy canister contains 9 g of this radioactive gas. (a) Find a
Posted: Sat Jul 09, 2022 1:59 pm
The half-life of krypton-91 (91Kr) is 10 s. At time to a heavy canister contains 9 g of this radioactive gas. (a) Find a function m(t)- mo2th that models the amount of 1kr remaining in the canister after t seconds. m(t) = (b) Find a function m(t)- moet that models the amount of 91 kr remaining in the canister after t seconds. (Round your r value to five decimal places.) m(t) - (c) How much "Kr remains after 1 min? (Round your answer to three decimal places.) (d) After how long will the amount of Kr remaining be reduced to 1 pg (1 microgram, or 106 g)? (Round your answer to the nearest whole number.) sec