Question

The half-life of a sample has been defined as the time it takes for half of a sample to decay.
The fifth-life can be defined as the time it takes for one-fifth of a sample to decay. Given
these definitions, calculate the fifth-life of a sample that has a half-life of 26 years.
A) 8.4 years
B) 60 years
C) 17 years
D) 29 years
E) 42 years

Answer 1

Answer:

Solution: Since it is not mentioned specifically what is the order of the reaction thus i assume it to be a zero order reaction. Since we know that t1/2 ... you answer

Answer 2

I just hope correct answer is 29 yr