Define how old is the fossil

Reference no: EM13666739

A fossil was analyzed as well as determined to have a carbon-14 level that is 80.0 % that of living organisms. How old is the fossil?

All living things contain carbon. Most of this carbon is stable carbon-12. Though, a small percentage will be carbon-14 a radioactive isotope of carbon that decays with time. As living things eat and breathe carbon is constantly recycled as well as therefore the percentage of carbon-14 remains constant. It's not until death that the percentage of carbon-14 will begin to diminish from decay. For the reason that radioactive decay is a first-order process the integrated rate law for a first-order reaction can be rewritten as
Fraction Remaining= 0.5^(t/t1/2)

Explain where t is the time elapsed and t 1/2 is the half-life. The half-life of C-14 is 5730 years.

Reference no: EM13666739

Questions Cloud

Explain what is the delta having of a liquid : Explain what is the DELTA having of a liquid that has a vapor pressure of 641 mmHg at 85.2 degrees C as well as a boiling point of 95.6 degrees C at 1 atmosphere

Compute the temperature in celsius when the vapor pressure : This is vital to Jack Daniels- The vapor pressure of ethanol is 115 mmHg at 34.9 degrees C. By means of the fact that: DELTA Hvap of ethanol is 40.5 kJ/mol compute the temperature in Celsius when the vapor pressure of ethanol is 700 mmHg.

Explain what is the molarity of the naoh solution : A 25 ml sample of naoh is titrated with 15.24 ml of 0.225 m h2so4. Explain what is the molarity of the naoh solution

Find the isomer that shows the least slightly different bond : Illustrate the bond angles which are at least slightly different in the C2H2Br2 molecule. Therefore this has isomers and find the isomer that shows the least slightly different bond angle

Define how old is the fossil : A fossil was analyzed as well as determined to have a carbon-14 level that is 80.0 % that of living organisms. How old is the fossil. All living things contain carbon. Most of this carbon is stable carbon-12.

Demonstrate complete structures of the intermediates : Addition of hydrogen chloride (HCl) to 1-isopropenyl-1-methylcyclopentane yields 1-chloro-1, 2, 2-trymethylcyclohexane. Intend a mechanism for the reaction. Demonstrate complete structures of the intermediates as well as use curved arrows to indi..

Explain how much energy in joules was absorbed : Explain if a 60 gram laboratory mouse is exposed to 20.3 rad of radiation, Explain how much energy in Joules was absorbed by the mouse's body

Explain a layer of peat beneath the glacial sediments : Explain a layer of peat beneath the glacial sediments of the last ice age has a carbon-14/carbon-12 ratio that is 21.4% of that discovered in living organisms. Explain how long ago in yr was this ice age

Explain when did the mammoth live : While did the mammoth live. Presume that living organisms have a carbon-14 decay rate of 15.3 dis/min*g C as well as that carbon-14 has a half-life of 5730 yr.

User Account

All Pages