1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nekit [7.7K]
3 years ago
7

Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide and oxygen according to the followi

ng chemical equation. 2 NO2(g) → 2 NO(g) + O2(g). A sample of NO2(g) is initially placed in a 2.50-L reaction vessel at 300°C. If the half-life and the rate constant at 300°C are 22 seconds and 0.54 M-1 s-1, respectively, how many moles of NO2 were in the original sample?
Chemistry
1 answer:
givi [52]3 years ago
7 0
T(1/2)=1/(k[NO2])
[NO2]=1/(kt(1/2))
[NO2]=1/(0.54M-1 s-1*22s) seconds cancel
[NO2]=1/11.88=0.0842
inital mole= 0.0842*volume(2.5)=0.210 mols
You might be interested in
Approximately how many mineral species have scientists identified?
nekit [7.7K]
I think it’s 5000 because it says that their is over 4,124 valid species of minerals.
3 0
3 years ago
Read 2 more answers
Which process is an example of a physical change?
Lostsunrise [7]

Answer:

The answer is flattening

Explanation:

A physical change is generally something that affects the shape of form of the matter and a chemical change results from a chemical reaction. Flames are caused by chemical reactions, as is rust, and the process of a fruit becoming ripe. Thus, the answer is “flattening”.

4 0
2 years ago
How would a solution that is labeled 5.0 M would be read as?
Ivanshal [37]
5 moles because molarity signifies number of moles dissolved in One litre of water
8 0
3 years ago
Read 2 more answers
Galaxies are composed of many different objects. What kind ok objects make up most of the visible matter in a galaxy?
Arte-miy333 [17]
Stars make up most of the visible matter
5 0
2 years ago
Read 2 more answers
What most likely happens during this reaction
Bad White [126]

Answer:

I think that it is A I am sorry if I am wrong

Explanation:

8 0
2 years ago
Other questions:
  • How many mole ratios can be correctly obtained from the chemical equation 2NO ® N2 + O2? Select one:
    10·1 answer
  • One reason ionic compounds do not dissolve well in nonpolar solvents is that ___.
    5·1 answer
  • What is the mass of a 67 dL sample of a salt solution?
    12·1 answer
  • Imagine you followed all steps correctly, with multiple attempts, and found that the purity of recombinant DHFR isolated through
    14·1 answer
  • Hey guys you should all call this number and leave a funny voicemail
    7·1 answer
  • 3) The spectrum of the unknown mixture is a mixture of two substances among the five. What are these two substances
    10·1 answer
  •  121.6 G of water was brought to a boil(100°C) after having 23750 J of heat applied. If the specific heat of water is 4.18 J/G
    5·1 answer
  • How can volcanic ash change Earths surface ?
    8·1 answer
  • A plastic bin is found to hold 3.1x10^24 molecules of water.
    5·1 answer
  • State the difference that may be observed between the solids obtain by evaporating a solution of a solid to dryness or letting i
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!