Explain the calculation is based on the fact

Assignment Help Chemistry
Reference no: EM13544970

The age of a rock can be estimated by measuring the amount of 40Ar trapped inside. The calculation is based on the fact that 40K decays to 40Ar by a first-order process. It also assumes that none of the 40Ar produced by the reaction has escaped from the rock since it was formed.

40K + e- ----> 40 Ar K = 5.81E-11 year-1

Calculate the half-life of the radioactive decay.

Reference no: EM13544970

Questions Cloud

Explain 3-methyl-2-butanone to 2-methyl-3-hexanone : Show the different ways to convert 3-methyl-2-butanone to 2-methyl-3-hexanone. Then show the product that forms when 3-phenylpropanal is allowed to mix with sodium hydroxide catalyst.
What is the elastic modulu of this wire : a wire has a diameter fo .200mm and stretches .20% when a force of 6.28N is applied to it. what is the elastic (Young's) modulu of this wire
Depict how to synthesize 2-methyl-2-pentene : Show how to synthesize 2-methyl-2-pentene from an alkyl halide and an aldehyde or ketone, plus any other necessary reagents. Then show the reagents necessary to convert butyraldehyde into the following. There may be one more step
Determine how many additional babies would be required : The intensity due to a number of different sources is the sum of the individual intensities. how many additional babies would be required
Explain the calculation is based on the fact : The age of a rock can be estimated by measuring the amount of 40Ar trapped inside. The calculation is based on the fact that 40K decays to 40Ar by a first-order process. It also assumes that none of the 40Ar produced by the reaction has escaped fr..
Calculate what is the radius of its circular orbit : If an electron moves perpendicular to the same magnetic field with this same translational speed, what is the radius of its circular orbit
Estimate what fraction of its kinetic energy is rotational : An 6.60-cm-diameter, 300 sphere is released from rest at the top of a 1.70-m-long, 20.0 incline. It rolls, without slipping, to the bottom. What fraction of its kinetic energy is rotational
What color is the light reflected from the plate : A chain of movie theaters is decorated with light fixtures that when the white light passes through a transparent plate, it becomes yellow light. What color is the light reflected from the plate
How much heat is received by the system : A 2-mol ideal gas system undergoes an adiabatic process where it expands and does 20 J of work on its environment. How much heat is received by the system

Reviews

Write a Review

 

Chemistry Questions & Answers

  Define what is the wavelength of the corresponding light

The energy of a photon is 3.16 times 10^-19J. what is the wavelength of the corresponding light. what is the color of this light.

  Explain what volume and in liters

What volume, in liters, of O2 at 35 degrees C and 1.19 atm can be produced the decomposition of 50.0 g of KNO3? 2KNO3(s)-->2KNO2(s)+O2(g).

  Explain quantum mechanice yields classical mechanics

As is often said, quantum mechanice yields classical mechanics when h approaches 0. What result is obtained classically for p(v,T) when h approaches 0? Why is this relation unsatisfactory

  State the experimentally measured density

The experimentally measured density under the same conditions is 3.10 g/L. Account for the discrepancy between your calculated value and the experimental result.

  Compute the molar mass of the unknown compound

unknown molecular (nonelectrolyte) compound in 102.0 g of water was found to have a freezing point of -1.8 degrees C. Calculate the molar mass of the unknown compound.

  Explain what is the solubility of n2 in a diver''s blood

As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.71 atm and a temperature of 25.0 C, what is the solubility of N2 in a diver's blood

  What volume of a koh solution is needed

What volume of a 0.50 M KOH solution is needed to neutralize completely 10.00 mL of a 0.30 M H2SO4 solution? The neutralization reaction is  2KOH + H2SO4 → K2SO4 + 2H2O.

  Evaluate the concentration in m of each of these solution

Hypochlorite ion comes from bleach, where it is found as sodium hypochlorite. Concentration of NaOCL is either 6% or 6.15%. Calculate the concentration, in M, of each of these solutions.

  Compute the partial pressures and the total pressure

A Vessel of of volume 22.4 L contains 2.0 mol H2 and 1.0 mol N2 at 273.15 K initially. All the H2 reacted with sufficient N2 to form NH3. Calculate the partial pressures and the total pressure of the final mixture.

  State what is the molarity of a potassium permanganate

what is the molarity of a potassium permanganate solution if 25.0 ml of it reacts with 10.0 ml of .0100 M sodium sulfite under acidic condictions.

  At 25 degrees celsius the first-order rate constant for a

at 25 degrees celsius the first-order rate constant for a reaction is 2.0x103 s-1. the activation energy is 15.0 kjmol.

  What is the concentration of h2 in the water in grams

what is the concentration of H2 in the water in grams per milliliter? (See Appendix G in your textbook for the vapor pressure of water.)

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