An ancient wooden club is found that contains 79 g of carbon and has an activity...
An ancient wooden club is found that contains 79 g of carbon and has an activity of 7.0 decays per second. Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.3×10−12.
Homework Answers
mass of Carbon = 79 gm
No of Carbon atoms = 79*6.02e+23/12
when the tree is cut or dead
number of C-14 in the wood No = 79*6.02e+23 /12 * 1.3e-12 = 51.52 e+11
activity of Carbon at the time it was cut =
c
No ( c -
C-14 decay const. = 3.8394e-12 /s )
suppose a time of t is elapsed from the time it was cut
current activity c
Nc = c
No exp (-0.693t/ T1/2 ) ( C-14 half life
T1/2 = 5730 Yrs
= 7 decays /s
51.52e+11 *3.8394e-12 exp( -t/T1/2) = 7
t = 5952.27 Yrs
Add Answer to:
An ancient wooden club is found that contains 79 g of carbon and
has an activity...
An ancient wooden club is found that contains 66 g of carbon and has an activity...
An ancient wooden club is found that contains 66 g of carbon and has an activity of 7.5 decays per second. Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.3×10−12. Please show your work.
An ancient wooden club is found that contains 87 g of carbon and has an activity of 7.0 decays per second. Determine its...
An ancient wooden club is found that contains 87 g of carbon and has an activity of 7.0 decays per second. Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.3×10−12 csn you please explain every step, thank you
An ancient club is found that contains 190 g of pure carbon and has an activity...
An ancient club is found that contains 190 g of pure carbon and has an activity of 6.5 decays per second. Determine its age assuming that in living trees the ratio of (14C / 12C) atoms is about 1.20×10-12. Note that the half life of carbon-14 is 5700 years and the Avogadro number is 6.02×1023. Answer in years.
there was no image provided 3. An ancient club is found that contains 150 g of...
there was no image provided
3. An ancient club is found that contains 150 g of pure carbon and has an activity of 5.5 decays per second. atoms is about 1.20 ×10¬12. Note that the 14C assuming that in living trees the ratio of (E) Determine its age half life of carbon-14 is 5700 years and the Avogadro number is 6.02 x1023. years
1. An ancient club is found that contains 200 g of pure carbon and has an...
1. An ancient club is found that contains 200 g
of pure carbon and has an activity of 7.5 decays per second.
Determine its age assuming that in living trees the ratio of
(14C12C)(14C12C) atoms is about 1.30×10−121.30×10−12. Note that the
half life of carbon-14 is 5700 years and the Avogadro number is
6.02×10236.02×1023.
help please (20 POINTS) 10.) An ancient wooden club is found that contains 6.5 kg of...
help please
(20 POINTS) 10.) An ancient wooden club is found that contains 6.5 kg of carbon. When recently measured, there were 8.0 x 1013 atoms of "C in the club. The decay constant for "C is 3.835 x 10-12 decays per second Assuming the ratio of C to 1"C atoms in living trees is 1.3 x 10-12, determine the age of the wooden club. Note that since the majority of the club's mass made up of 12C (then and...
An ancient club is found that contains 180 g of pure carbon and has an activity of 5.5 decays per second. Determine its age assuming that in living trees the ratio of (14C12C)(14C12C) atoms is about 1...
An ancient club is found that contains 180 g of pure carbon and has an activity of 5.5 decays per second. Determine its age assuming that in living trees the ratio of (14C12C)(14C12C) atoms is about 1.40×10−121.40×10−12. Note that the half life of carbon-14 is 5700 years and the Avogadro number is 6.02×10236.02×1023.
1. The remains of a pre-historic human are found. The mass of carbon in the sample...
1. The remains of a pre-historic human are found. The mass of carbon in the sample is 8.5kg. The activity i.e. the number of decays per second is 700 decays/second. In living matter the ratio of 14c/?C=1.3. 10-12 14C is radioactive, whereas 12C is stable. Carbon's atomic mass is 12g per 6.02.102 atoms. The halflife of carbon is 5730 years. Make sure to label the different parts of your answer! a) How many carbon atoms are in the sample? b)...
An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of...
An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 303 g (HINT: Assume all the carbon is 12C and determine the number of atoms) and careful measurements show that the remaining 14C has a current decay rate of 14 decays/s. Determine the age of the bone (and presumably the jewelry). Remember, the ratio of 14C to 12C when the animal died was 1.3×10-12 & the half-life of 14C is 5730 y. age of...
11. My Notes Ask Your Teacher -/10 points Content Carbon dating An archaeologist finds some ancient...
11. My Notes Ask Your Teacher -/10 points Content Carbon dating An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 435 g (HINT: Assume all the carbon is 12C and determine the number of atoms) and careful measurements show that the remaining 14C has a current decay rate of 11 decays/s. Determine the age of the bone (and presumably the jewelry). Remember, the ratio of 14C to 12C when the animal died was...
there was no image provided
3. An ancient club is found that contains 150 g of pure carbon and has an activity of 5.5 decays per second. atoms is about 1.20 ×10¬12. Note that the 14C assuming that in living trees the ratio of (E) Determine its age half life of carbon-14 is 5700 years and the Avogadro number is 6.02 x1023. years
1. An ancient club is found that contains 200 g
of pure carbon and has an activity of 7.5 decays per second.
Determine its age assuming that in living trees the ratio of
(14C12C)(14C12C) atoms is about 1.30×10−121.30×10−12. Note that the
half life of carbon-14 is 5700 years and the Avogadro number is
6.02×10236.02×1023.
help please
(20 POINTS) 10.) An ancient wooden club is found that contains 6.5 kg of carbon. When recently measured, there were 8.0 x 1013 atoms of "C in the club. The decay constant for "C is 3.835 x 10-12 decays per second Assuming the ratio of C to 1"C atoms in living trees is 1.3 x 10-12, determine the age of the wooden club. Note that since the majority of the club's mass made up of 12C (then and...
1. The remains of a pre-historic human are found. The mass of carbon in the sample is 8.5kg. The activity i.e. the number of decays per second is 700 decays/second. In living matter the ratio of 14c/?C=1.3. 10-12 14C is radioactive, whereas 12C is stable. Carbon's atomic mass is 12g per 6.02.102 atoms. The halflife of carbon is 5730 years. Make sure to label the different parts of your answer! a) How many carbon atoms are in the sample? b)...
11. My Notes Ask Your Teacher -/10 points Content Carbon dating An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 435 g (HINT: Assume all the carbon is 12C and determine the number of atoms) and careful measurements show that the remaining 14C has a current decay rate of 11 decays/s. Determine the age of the bone (and presumably the jewelry). Remember, the ratio of 14C to 12C when the animal died was...
Most questions answered within 3 hours.
-
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 19 seconds ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 14 minutes ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 1 hour ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 2 hours ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 2 hours ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 2 hours ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 2 hours ago -
What is an example of a limitation in implementing a new
ERP system and how it...
asked 2 hours ago -
In a section of 9.7cm of an artery with a radius of 2.6mm there
is a...
asked 2 hours ago -
the two carboxylic acid groups of aspartic acid have different
acidities with pKa values of 2.1...
asked 2 hours ago -
Would CuCO3 aqueous salt combined with calcium chloride
form a solid precipitate? If so, what would...
asked 2 hours ago -
How do ECM Solutions assist in embedding a culture of continuous
improvement in an organization? (Project...
asked 2 hours ago