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
ASHA 777 [7]
2 years ago
15

Nitric acid and nitrogen monoxide react to form nitrogen dioxide and water, like this: At a certain temperature, a chemist finds

that a 7.7 L reaction vessel containing a mixture of nitric acid, nitrogen monoxide, nitrogen dioxide, and water at equilibrium has the following composition: compound amount
HNO 16.2 g 11.0 g 18.6 g H20 236.7 g 3 NO NO
Calculate the value of the equilibrium constant K for this reaction. Round your answer to 2 significant digits.
Chemistry
1 answer:
poizon [28]2 years ago
4 0

Answer:

K = 3.3

Explanation:

Nitric acid, HNO3, reacts with nitrogen monoxide, NO, to produce nitrogen dioxide, NO2 and water H2O as follows:

2HNO3(g) + NO(g) → 3NO2(g) + H2O(g)

Where equilibrium constant, K, is:

K = [NO2]³[H2O] / [HNO3]²[NO]

<em>[] is the molar concentration of each species at equilibrium.</em>

To solve this question we need to find molarity of each gas and replace these in the equation as follows:

<em>[NO2] -Molar mass NO2-46.0g/mol-</em>

18.6g * (1mol/46.0g) = 0.404mol / 7.7L = 0.0525M

<em>[H2O] -Molar mass:18.01g/mol- </em>

236.7g * (1mol/18.01g) = 13.14 moles / 7.7L = 1.707M

<em>[HNO3] -Molar mass:53.01g/mol-</em>

16.2g * (1mol/53.01g) = 0.3056 moles / 7.7L = 0.0397M

<em>[NO] -Molar mass: 30.0g/mol-</em>

11.0g * (1mol/30.0g) = 0.367 moles / 7.7L = 0.0476M

Replacing:

K = [NO2]³[H2O] / [HNO3]²[NO]

K = [0.0525M]³[1.707M] / [0.0397M]²[0.0476M]

<h3>K = 3.3</h3>

<em />

<em />

You might be interested in
Hey yall, join on kahoot: 1088134
Paraphin [41]

Answer:

:) ..................................................................:)

3 0
3 years ago
Read 2 more answers
Deval drew the models of particles in a substance shown below. Which model best represents the particles in solid
adell [148]

Answer:

it would be the second one thank me later

Explanation:

5 0
2 years ago
Oxygen atoms have six outer electrons<br><br> Write the symbol for an oxide ion.
Shkiper50 [21]

Answer:

O^{2-} is the symbol for an oxide ion

7 0
3 years ago
Hersey chocolate company makes 80 million kisses daily how many chocolate kisses are made per second
Scrat [10]

Answer:

92.5925925926

Explanation:

8 million divided by the seconds in a day witch is 86400

7 0
2 years ago
Read 2 more answers
Through which of the following would sound waves travel the fastest?
Marina86 [1]

A. or C. .......................................

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which planets are gas giants
    14·1 answer
  • 100 points!! Brainliest if correct!!
    10·2 answers
  • Write your question here (Keep it simple and clear to get the best answer)what are the different types of bleaching agent's
    10·1 answer
  • What is the main function of antibodies?
    9·1 answer
  • A compound contains 38.7% K, 13.9% N, and 47.4% O by mass. What is the empirical formula of the compound?
    5·1 answer
  • Which has a larger electronegativity?<br> Ge or Pb<br> Ge or Fe<br> Zn or Se
    9·1 answer
  • What kind of structure do the cations and anions in table salt form
    7·1 answer
  • Why do girls like boys who act rude more than boys that are actually nice!
    10·2 answers
  • Need answer asap
    7·1 answer
  • Is snails growing shell conserve mass
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!