Compute the age of the sample

Assignment Help Chemistry

Reference no: EM13179440

A 1g sample of carbon obtain from material found in a ancient site gave 7900 carbon-14 disentegrations in a 20-hour period. In the same amount of time 1g of carbon from a source found yesterday under went 18,400 disintegrations. Calculate the age of the sample. Given - Half-life of Carbon-14 is 5.73x10^3 year Show steps

Reference no: EM13179440

Questions Cloud

Compute the ph and the concentrations of all species : Calculate the pH and the concentrations of all species present in a 0.19-M solution. The acid dissociation constants are K1 = 5.9 10-2 and K2 = 6.4 10-5.

What is the depreciation expense for 2010 : What is the depreciation expense for 2010 using the company's existing method and what is the depreciation expense for 2010 if Mary incorporates her changes to how depreciation expense is calculated?

State the volume of the methane : Consider one kmol of methane at a pressure of 23.2 bar and a temperature of 200 K. Is this methane an ideal gas? Show or describe how you reached this conclusion

Why is the demand for healthcare products usually inelastic : You estimate that the price elasticity of demand for clinic visits is ?0.25. You anticipate that a major insurer will increase the copayment from $20 to $25. This insurer covers 40,000 of your patients, and those patients average 2.5 visits per ye..

Compute the age of the sample : A 1g sample of carbon obtain from material found in a ancient site gave 7900 carbon-14 disentegrations in a 20-hour period. In the same amount of time 1g of carbon from a source found yesterday under went 18,400 disintegrations.

State the half reactions happening at each the anode : Construct a cel from Ni(s), Ni^2+(l), Cd(s) and Cd^2+(l) a. What would be the anode and what would be the cathode? b. indicate the half reactions happening at each the anode and the cathode

Calculate the standard deviation of each project : calculate the expected value of each investment. draw a bar chart for each investment. calculate the standard deviation of each project. Determine which of the two investments the investor should choose.

Compute the ph of the titration mixture : Calculate the pH of the titration mixture after 10.0, 20.0 and 30.0 mL of base have been added. (the ka for acetic acid is 1.76 x 10^-5).

Define the total average change in ke of gas molecules : A container holds 2,0 of gas. the total average change in KE of gas molecules in the container is equal to the the sum of KE of an 8,0x10^-3 -Kg bullet with speed of 770 m/s.

User Account

All Pages