# First Order Kinetics

The half life of uranium-238 is 4.51 x 10$^9$ years. What is the rate constant? How much uranium-238 is left after 4 half lives if we start with 64 mg?

Posted by Andrew Gomez 9 months ago

## Related Problems

The following initial rate data was collected for the reaction, A + 2B $\longrightarrow$ products

B. Find the rate constant

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[NO$_2$]$^X$[O$_2$]$^Y$

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A. Calculate the rate constant for this reaction

B. How much time is required for this reaction to be 75% complete?

For a given reaction, the reaction rate exactly doubles when the temperature is raised from 293 K to 304 K. Calculate the activation energy.