The charcoal from ashes found in a cave gave 7.4 14C counts per gram per minute. Wood from the outer portion of a growing tree g
ives a comparable count of 15.3. The half-life of 14C is 5700 years.
How old are the ashes?
A) 3245 y
B) 5700 y
C) 5970 y
D) 9220 y
E) 5437 y
1 answer:
Answer:
C) 5970 y
Explanation:
Given;
initial amount of wood, N₀ = 15.3 cpm/g
remaining amount of wood (charcoal), N = 7.4 cpm/g
half life of carbon 14, t 1/2 = 5700 years
The age of the ashes can be calculated using the following formula;

Therefore, the ashes are 5970 years
You might be interested in
Answer:
Protons, neutrons, and electrons are the three main subatomic particles found in an atom.
Explanation:
Answer:
i dont know
Explanation:
sorry
Answer:
becuase of the sun
in different places some places would be cold
Answer:
this is hella sus
Explanation:
The enthalpy of the creation of Methanol is negative. This means heat is released when the reaction proceeds. You would want to use a low temperature.