Homework Help: college chemistry

Posted by sparkle on Wednesday, November 10, 2010 at 4:38pm.

The rate of the following reaction:
2 NO2 2 NO + O2,
is characterized by the rate constant k = 0.775 L·mol-1s-1. What is the half-life for this reaction at the same conditions when the initial concentrations are 0.0115 M? (Round your answer to 3 significant figures.)
Hint: The units of the rate constant are linked with the order of reaction.

college chemistry - DrBob222, Wednesday, November 10, 2010 at 9:43pm
Here is a site that lists the units of the order. Scroll about half way down the page to see this is a second order equation. Then look in your text for the integrated form (the site also shows the formula), substitute the numbers from the problem and solve. The site even has the NO2 problem (but not your numbers) as an example.

http://en.wikipedia.org/wiki/Rate_equation

Answer this Question

Related Questions

chemistry ASAP please!! - One reaction that destroys O3 molecules in the ...
chemistry - What is the rate of the following reaction (M/s) if the rate ...
chemistry - disappearance of NO in ...- Help!!!? The following data were ...
Chemistry - At 700 K, the equilibrium constant for the reaction NO2(g) « ...
college - For the reaction NO(g) + O3(g) „_ NO2(g) + O2(g) The frequency ...
Chemistry - For the reaction, 2 XO + O2 = 2 X02, some data obtained from ...
Chemistry - For the reaction, 2 XO + O2 = 2 X02, some data obtained from ...
chemistry - he decomposition of nitrogen dioxide at a high temperature is second...
chemistry - For the reaction, 2 XO + O2 = 2 X02, some data obtained from ...
Chemistry - For the reaction, 2 XO + O2 = 2 X02, some data obtained from ...

For Further Reading

First Name:
School Subject:
Answer: