Question

The half-life of 42K is 12.4 hours. How much of a 750 g sample is left after 62.0 hours

Answer 1

@JustSaiyan

Answer 2

750 ⋅ 0.5^(62÷12.4)
750 ⋅ 0.5^(5)
750 ⋅ 0.03125
23.4375 g remains after 62 hours

Answer 3

0.0

Answer 4

What?

Answer 5

I understand it not lol

Answer 6

Nuclear chemistry is a refined taste. It is imperative that all the numbers are correct, otherwise they equal disaster.

Answer 7

Does step 3 equal step 4?

Answer 8

Yes. Why?

Answer 9

Trying to understand it.