Consider a certain type of nucleus that has a half-life of 32 min. calculate the percent of original sample of nuclides remainin
g after 1.9 hours have passed
1 answer:
t1/2 = ln 2 / λ = 0.693 / λ
Where t1/2 is the half life of the element and λ is decay constant.
32 = 0.693 / λ
λ = 0.693 / 32 (1)
Nt = Nο eΛ(-λt) (2)
Where Nt is atoms at t time, λ is decay constant and t is the time taken.
t = 1.9 hours = 1.9 x 60 min
From (1) and (2),
Nt = Nο e⁻Λ(0.693/32)*1.9*60
Nt = 0.085Nο
Percentage = (Nt/Nο) x 100%
= (0.085Nο/Nο) x 100%
= 8.5%
Hence, Percentage of remaining atoms with the original sample is 8.5%
You might be interested in
Answer:
Coefficient of
in the balanced equation with smallest possible integer is 6.
Explanation:
Unbalanced equation: 
Balance Ca: 
Balance
: 
Balance H and O: 
Balanced equation: 
So coefficient of
in the balanced equation with smallest possible integer is 6.
ANSWER: C gases
it has no definite volume and shape and also expands to fill the available volume of the container.
Answer:
gas
Explanation:
(g) means gas
(l) is liquid
(s) solid
(aq) aqueous
Answer:
Convection can only happen with liquids and gases.
Hope it helps :)
Answer:
The first, second, and 4th option
Explanation: