# chemistry

posted by .

The thermal decomposition of dinitrogen pentoxide in the gas phase to give nitrogen dioxide and oxygen is a first order reaction. If the half life at 55 C is 410 s, what is the value of the rate constant k? If the initial concentration of dinitrogen pentoxide in an expt at 55 C was 0.200 M what will be the concentration of dinitrogen pentoxide, nitrogen dioxide and oxygen after 4 half-lives?

• chemistry -

donna, gina, jen, or whoever --

To quote one of our very good math and science tutors: “You will find here at Jiskha that long series of questions, posted with no evidence of effort or thought by the person posting, will not be answered. We will gladly respond to your future questions in which your thoughts are included.”

It's also helpful if you post under only one name -- less confusion.

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### general chemistry

. The thermal decomposition of dinitrogen pentoxide in the gas phase to give nitrogen dioxide and oxygen is a first order reaction. If the half life at 55 °C is 410 s, what is the value of the rate constant k?
2. ### general chemistry

. The thermal decomposition of dinitrogen pentoxide in the gas phase to give nitrogen dioxide and oxygen is a first order reaction. If the half life at 55 °C is 410 s, what is the value of the rate constant k?
3. ### Chemistry

The reaction for the decomposition of dinitrogen monoxide gas to form an oxygen radical is: N2O(g)==>N2(g)+O(g) . If the activation energy is 250 kJ/mol and the frequency factor is 8.0 x 1011 s-1, what is the rate constant for the …
4. ### Chemistry

i seriously do not understand the formula for this problem :( The reaction for the decomposition of dinitrogen monoxide gas to form an oxygen radical is: N2O(g)==>N2(g)+O(g) . If the activation energy is 250 kJ/mol and the frequency …
5. ### Chemistry (rate reactions)

The rate constant for the thermal decomposition at 85 degrees Celsius of dinitrogen pentoxide equals 6.2 x 10 raised to -2 min. As determined by experiment this decomposition is first order-- 2 N2O5 ----> 4 NO2 + O2 Calculate the …
6. ### Chemistry

Dinitrogen pentoxide, N2O5, decomposes by a first-order reaction. What is the initial rate of decomposition of N2O5 when 3.6 g of N2O5 is confined in a 0.77 L container and heated to 65°C?
7. ### Chemistry 12

Write an equation showing the relationship between i) the rate of production of oxygen and the consumption of dinitrogen pentoxide ii) the rate of production of oxygen and the rate of production of nitrogen dioxide iii) the rate of …
8. ### Chemistry

The gas phase decomposition of dinitrogen pentoxide at 335 K N2O5(g) 2 NO2(g) + ½ O2(g) is first order in N2O5. During one experiment it was found that when the initial concentration of N2O5 was 0.218 M, the concentration of N2O5 …
9. ### AP Chem

Dinitrogen pentoxide (N2O5) decomposes by first-order kinetics with a rate constant of 0.0064 s−1 at a certain temperature. What is the half life for the decomposition of N2O5 at this temperature?
10. ### Chemistry

1. The decomposition of acetaldehyde is a second order reaction with a rate constant of 4.71 × 10^−8 L/mol/s. What is the instantaneous rate of decomposition of acetaldehyde in a solution with a concentration of 5.55 × 10^−4 …

More Similar Questions