Explain radioactive isotope of carbon that decays with time

Assignment Help Chemistry
Reference no: EM13490674

All living things contain carbon. Most of this carbon is stable carbon-12. However, a small percentage will be carbon-14, a radioactive isotope of carbon that decays with time. As living things eat and breath, carbon is constantly recycled and 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. Because radioactive decay is a first-order process, the integrated rate law for a first-order reaction can be rewritten as {\rm fraction~remaining} = 0.5^{(t / t_{1/2})} where t is the time elapsed and t_1/2 is the half-life. The half-life of C-14 is 5730 years. A fossil was analyzed and determined to have a carbon-14 level that is 67.0\% that of living organisms. How old is the fossil? Express your answer with the appropriate units

Reference no: EM13490674

Previous Q& A

  Publish an annual transparency report

Requiring audit firms to publish an annual transparency report if they conduct audits of 10 or more significant entities - audit deficiency report in relation to an individual audit firm if it identifies an audit deficiency in the auditor's quality ..

  What are the individual tax forms

What are the individual tax forms, and what factors are used to determine which one to use?

  Calculate the charge on the ion

An ion accelerated through a potential difference of 240.0 V has its potential energy decreased by potential energy of 7.68*10^-17 J

  What is taxable

You have just been notified by your firm's Managing Principal that another financial planner has decided to leave the firm. Some of her clients will be notified that you will be their new point of contact for their planning.

  What is the submarines average density

A submerged submarine alters its buoyancy so that it initially accelerates upward at .325m/s^2. What is the submarine;s average density

  An explanation of the marginal tax rate and average tax

An example of how to calculate the tax liability using the tax rate table and the tax rate formula for a taxpayer with taxable income of $55,000, filing status married filing jointly.

  Bottles of pepelepeu perfume from frenchy’s perfume factory

“The Perfume Shop, Main Street, Baltimore, MD, USA, agrees to buy 100 bottles of PepeLepeu perfume from Frenchy’s Perfume Factory, Paris, France, for US$10 per bottle.”

  Compute the magnitude of the magnetic field inside toroid

The magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.7 m and an outer radius of 1.3m. Find the magnitude of the magnetic field inside the toroid

  Estimate the change in momentum of the ball

A. 0.145 kg baseball is pitched at 42 m/s. The batter hits it horizontally to the pitcher at 58 m/s. What is the change in momentum of the ball

  Find with what average force did the parachuter hit sand

The U.S. Army's parachuting team, the Golden Knights, are on a routine jumping mission over a deserted beach. With what average force did the parachuter hit sand

Reviews

Write a Review

 

Similar Q& A

  Define what is the concentration of the solution in molarity

0.000333 g fluorescein (332.32 g/mol) is dissolved in 225 mL solution of ethanol. The density of ethanol is 0.785 g/mL. What is the concentration of the solution in molarity (M)

  Explain the value for delta h solution at infinite dilution

Determine the value for delta H solution at infinite dilution calculated from the following delta standard H of formation

  Explain what is the molarity of an hcl solution

What is the molarity of an HCl solution if 23.3 mL of the solution is required to react with .266 g of Na2CO3

  State how many phosphoester bonds and phosphoanhydride bonds

how many phosphoester bonds and phosphoanhydride bonds are in adenosine

  Determine the number of moles of water

Find the number of moles of water that can be formed if you have 150mol of hydrogen gas and 70mol

  Geologic formation containing various carbonate minerals

A groundwater sample is taken from a geologic formation containing various carbonate minerals (e.g., CaCO3, MgCO3, CaCO3•MgCO3, etc.) without exposing the water sample to the atmosphere.

  Find out the empirical and molecular formulas

A compound containing only C, H, and O, was extracted from the bark of a sassafras tree. The combustion of 91.3 mg produced 248 mg of CO2 and 50.8 mg of H20. The molar mass of the compound was 162 g/mol. Determine its empirical and molecular formu..

  State buffer solution is made by dissolving benzoic acid

A buffer solution is made by dissolving 2.5g benzoic acid and 2.7 sodium benzoate in 100mL water. 15 mL of 0.125M NaOH is added to the solution

  Determine delta h for the solution of 1g naoh in water

find delta H for the solution of 1g NaOH in water d) find delta H for the solution of 1 mole NaOH in water e) Given the following heats of formation

  Compute the mass of sodium hydroxide

Calculate the mass of sodium hydroxide needed to to prepare 100 mL of a 0.10 M solution?

  Give example a general difference in enthalpy

Sn2 requires a strong nucleophile while E2 requires a strong base. But relatively compared if you have a very strong base the E2 is preferred. Why is it so?

  How much hcl are needed

Consider 2 Al + 6 HCl → 2 AlCl3 + 3 H2 , the reaction of Al with HCl to produce hydrogen gas. This reaction has a yield of 82.5 percent. How much HCl are needed to produce 14.0 L of H2 at 351 K and 1.11 atm ?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd