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
dalvyx [7]
3 years ago
6

A student ran the following reaction in the laboratory at 671 K: 2NH3(g) N2(g) + 3H2(g) When she introduced 7.33×10-2 moles of N

H3(g) into a 1.00 liter container, she found the equilibrium concentration of H2(g) to be 0.103 M. Calculate the equilibrium constant, Kc, she obtained for this reaction. Kc =
Chemistry
1 answer:
vaieri [72.5K]3 years ago
3 0

Answer:

Kc = 8.05x10⁻³

Explanation:

This is the equilibrium:

                 2NH₃(g)   ⇄     N₂(g)     +     3H₂(g)

Initially       0.0733

React         0.0733α          α/2                3/2α

Eq     0.0733 - 0.0733α    α/2                0.103

We introduced 0.0733 moles of ammonia, initially. So in the reaction "α" amount react, as the ratio is 2:1, and 2:3, we can know the moles that formed products.

Now we were told that in equilibrum we have a [H₂] of 0.103, so this data can help us to calculate α.

3/2α = 0.103

α = 0.103 . 2/3 ⇒ 0.0686

So, concentration in equilibrium are

NH₃ = 0.0733 - 0.0733 . 0.0686 = 0.0682

N₂ = 0.0686/2 = 0.0343

So this moles, are in a volume of 1L, so they are molar concentrations.

Let's make Kc expression:

Kc= [N₂] . [H₂]³ / [NH₃]²

Kc = 0.0343 . 0.103³ / 0.0682² = 8.05x10⁻³

You might be interested in
What is the scientific name of water<br>​
spayn [35]

Answer:

Dihydrogen monoxide is one of the scientific names of water having the formula H2O, where H2 "dihydrogen" is a double hydrogen (Latin Hydrogenium — hydrogen), and O is "monoxide" (oxygen).

5 0
3 years ago
Read 2 more answers
Describe the cell structure of a typical plant cell
aleksley [76]

Answer:

Wrong subject my friend.

4 0
3 years ago
molecules with a plane of symmetry between the chiral centers are achiral and meso. identify which of the following molecules ar
maks197457 [2]

Molecules with a plane of symmetry between the chiral centers are achiral and meso. From the given molecules (Picture attached) only (A) compound 1 is meso.

When compounds possess a plane of symmetry between the chiral centers they are called achiral or meso compounds. Among the given compounds (A) compound 1 have a plane of symmetry. So we can say compound one is a meso or achiral compound. Compounds two, three, and four have no plane of symmetry, as you can see in the structures attached. So all other compounds (compound 2, compound 3, and compound 4) except compound one are not meso or achiral.

You can also learn about meso compounds from the following question:

brainly.com/question/29022658

#SPJ4

7 0
1 year ago
Number 2 I need help Scientific notation
Lelu [443]
  • (6.6 x 10^2) (9.6 x 10^6) = 6.336 × 10^6
4 0
3 years ago
Write the structures for all the isomers of the –C5H11 alkyl group.
seropon [69]

Answer:

Explanation:

Alkyl groups are those which are derived from alkane by the removal of one hydrogen atom

For example ,methane CH4, and its corresponding alkyl groups is methyl -CH3

5 0
3 years ago
Other questions:
  • Label the parts of the electric circuit that best correspond to the heart, arteries, veins, and cells.
    12·1 answer
  • Materials of low mass are combined to form a substance of higher mass during ____. a. fission c. both A and B b. fusion d. neith
    14·1 answer
  • naturally occurring bromine molecules, br2 have masses of 158, 160, and 162. they occur in the relative abundances 25.69%, 49.99
    13·1 answer
  • True or false?
    15·1 answer
  • Helppppppppppppppppppp
    14·2 answers
  • 2. Which equation represents a transmutation?
    9·1 answer
  • The definition of having to do with the physical properties and terrain of an area refers to the
    10·1 answer
  • Due at 8:20 am and it’s currently 2:20 am! Please help me. Do NOT send links, it’s irritating and it is a waste of time. Thank y
    12·1 answer
  • How much heat is required to convert 29g of ice at -4.0c to water vapor at 105
    10·1 answer
  • The graph shows the consumption of gasoline and diesel fuels by vehicles in the United States for a period of 40 years.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!