Question

The one-third life of DDT, a pesticide is 15 years. A 720 g sample of DDT was prepared recently. Find the amount that will be remaining after 45 years.

Answer 1

Answer:

None (0 g)

Step-by-step explanation:

One-third of DDT finishes in 15 years.

1/3rd of 720g = 720/3 = 240g

45 = 15x3

total = 240x3

=720.

720 - 720 = 0 g.

So no DDT will be left.