What was the plum-pudding atomic model? A. A description of atoms being balls of positive charge with electrons scattered outsid
2 answers:
You might be interested in
Answer:
= 0.613dm^3
Explanation:
Data:
Molarity, M = 1.50M
no. of moles = 0.920 moles
volume=?
Solution:
as, molarity=
so, volume =
putting values:
=
volume = 0.613dm^3
Answer:
32,0 days.
Explanation:
The radioactive decay follows:
Where Nt is the concentration in a time t (6,22x10¹⁷), N₀ is the initial concentration (9,95x10¹⁸) Half life time is 8,0 days and t is the time it take to drop this concentration. Replacing:
It take <em>32,0 days</em>
<em></em>
I hope it helps!