Homework Help: chemistry

Posted by L on Saturday, February 4, 2012 at 9:02pm.

Radioactive materials are often used in biological studies. A radiation biologist studies the rate of decomposition of a certain substance and obtains the following data:
Time(days) 0 4.0 8.0 12.0 16.0
Mass (μg) 15.50 10.90 7.67 5.39 3.79
Determine the rate constant in units of day^(-1).

chemistry - DrBob222, Saturday, February 4, 2012 at 9:27pm
I would do this.
ln(No/N) = kt
No = what you started with.
N = what you ended up with.
k = what you're looking for.
t = time = 4 days
I would plug in all the data, find k for each 4 day period, then average all of the values of k together.

Answer this Question

Related Questions

Science - Radiation - A radioactive isotope, used in the agricultural industry ...
biology - what is the primary focus of all biological studies? I love u nichole ...
chemistry - What are some applications of Nuclear Chemistry in Medicine? So far ...
chemistry - a radioactive fission product of nuclear explosions and sccidents is...
Chemistry (rate reactions) - The rate constant for the thermal decomposition at ...
chemistry kinetics - Decomposition of an organic compound A follows first order ...
College Chemistry - The following data are obtained for the decomposition of ...
chemistry - Which of the following statements about UV radiation is/are FALSE? (...
managerial accounting - The following direct materials and direct labor data ...
Chemistry please check - 1. All of the naturally occurring radioactive decay ...

For Further Reading

First Name:
School Subject:
Answer: