MAC1147 Quiz Quiz 33 This Quiz 10 pts possb This Question 1

MAC1147 Quiz: Quiz 3.3 This Quiz 10 pts possb This Question: 1 pt FIo

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Half life = 20 seconds

Amount = 40 g

After 20 secs: 40/2 = 20g
After 40 secs: 20/2 = 10g
After 60 secs: 10/2 = 5g
After 80 secs: 5/2 = 2.5g
After 100 secs: 2.5/2 = 1.25g