A.)49.4974874 moles or 49.5 moles
B.)2.980808730172671e+25 or 3e+25
A feature that an iron metal has is a sea of electrons
Answer:
8.10 hours.
Explanation:
You start with 500.0g.
After the first half-life, you have 250.0g.
After the second, you have 125.0g.
After the third, you have 62.50g.
Therefore, it takes three half-lives to decay to 62.50g.
Therefore, the elapsed time must be triple the length of one half-life.
24.3
3
=
8.10
, so it is 8.10 hours.
Explanation:
Tomato juice or acid rain
