Half life of 35s is 87.8 d what percentage of 35s sample remains after 180 d ?
Answers
Answered by
0
Answer:
25%
Explanation:
Given data:
Half life of S-35 = 87.8 days
Percentage of sample after 180 days = ?
Solution:
Number of half lives = T elapsed / half life
Number of half lives = 180 days / 87.8 days
Number of half lives = 2
At time zero = 100%
At first half life = 100%/2 = 50%
At second half life = 50%/2 = 25%
Similar questions