Asked by Tania

Ba has a half-life of 283.2 hours. How long would it take for the 50 mg of Ba in a sample to decay to 1.0 mg?
Answered by Damon
50 * (1/2)^n = 1 ???
.5^n = .02
n ln .5 = ln .02 (any base log will do)
n = ln(.02) / ln(.5)

then n * 283.2
Answered by Anonymous
isnt it..

1=50(.5)^(x/283.2)
1/50=(.5)^(x/283.2)
logbase.5(1/50)=x/283.2
x=1598.34
Answered by shan shan
s=k ln W * / g!^¥ + ([x:86:23]<€{fn t})


what does this means?
Answered by jay jay
It means you are trying to win the lotto from a useless formula that some blokes made up to have a fun time... Fun time of what you ask? Fun time at laughing at alllll the people who believe this BS...
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