Posted by <3 on .
The halflife of Palladium100 is 4 days. After 12 days a sample of Palladium100 has been reduced to a mass of 4 mg. What was the initial mass (in mg) of the sample? What is the mass 5 weeks after the start?

Calculus  bobpursley, Friday, February 19, 2010 at 12:04am
amountremaining=Initialamount*e^(.692t/4)
put in given: amount remaining, 12 days, solve for initial amount. 
Calculus  Anonymous, Sunday, January 11, 2015 at 11:12pm
wgtwgt