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
tiny-mole [99]
3 years ago
13

In a study of the conversion of methane to other fuels, a chemical engineer mixes gaseous methane and gaseous water in a 0.778 L

flask at 1,072 K. At equilibrium, the flask contains 0.206 mol of CO gas, 0.187 mol of H2 gas, and 0.187 mol of methane. What is the water concentration at equilibrium (Kc = 0.30 for this process at 1,072 K)? Enter to 4 decimal places. HINT: Look at sample problem 17.7 in the 8th ed Silberberg book. Write a balanced chemical equation. Write the Kc expression. Calculate the equilibrium concentrations of all the species given (moles/liter). Put values into Kc expression, solve for the unknown.
Chemistry
1 answer:
sergejj [24]3 years ago
7 0

Answer:

the water concentration at equilibrium is

⇒ [ H2O(g) ] = 0.0510 mol/L

Explanation:

  • CH4(g) + H2O(g) ↔ CO(g) + 3H2(g)

∴ Kc = ( [ CO(g) ] * [ H2 ]³ ) / ( [ CH4(g) ] * [ H2O(g) ] ) = 0,30

  • equilibrium:

⇒ [ CO(g) ] = 0.206 mol / 0.778 L = 0.2648 mol/L

⇒ [ H2(g) ] = 0.187 mol / 0.778 L = 0.2404 mol/L

⇒ [ CH4(g) ] = 0.187 mol / 0.778 L = 0.2404 mol/L

replacing in Kc:

⇒ ((0.2648) * (0.2404)³) / ([ H2O(g) ] * 0.2404 ) = 0.30

⇒ 0.0721 [ H2O(g) ] = 3.679 E-3

⇒ [ H2O(g) ] = 0.0510 mol/L

You might be interested in
Why does warm air raise and cold air sink
ki77a [65]
Warm is less heaver then cold air so warm air rise and cold air sinks
  
3 0
3 years ago
Read 2 more answers
Under what conditions can calcium bromide conduct electricity
Marat540 [252]
CaBr conducts electricity in the molten state but does not conduct as a solid. ionic dissolution equation.
7 0
2 years ago
The difference in interchain stability between the polysaccharides glycogen and cellulose is due to: Group of answer choices the
denis-greek [22]

Answer: both the different glycosidic linkages of the molecules and the different hydrogen bonding partners of the individual chains.

Explanation:

Glycogen is a polysaccharide of glucose which is a form of energy storage in fungi, bacteria and animals. Glycogen is primarily stored in the liver cells and skeletal muscle.

The difference in interchain stability between the polysaccharides glycogen and cellulose is due to the different glycosidic linkages of the molecules and the different hydrogen bonding partners of the individual chains.

7 0
3 years ago
When writing a formula for a compound having a transition metal in it, _____.
Stella [2.4K]

Answer:

it is always necessary to use the roman numeral as the assigned charge of the metal.

Explanation:

This is so that one would know which Transition metal is being used. For example copper (II) would be Cu²+

3 0
3 years ago
Is petrol a conductor or an insulator
Sidana [21]
Petrol is a conductor of electricity, because it conducts rather than insulates. 
8 0
3 years ago
Read 2 more answers
Other questions:
  • 2. 3. For her chemistry experiment, Marisol needs 2 liters of a 50% alcohol solution. The lab has two containers, one with 40% a
    13·1 answer
  • Calculate the number of milligrams to 0.425 kg
    6·1 answer
  • Name 2 gram negative bacteria often found in contaminated food
    12·1 answer
  • Current nuclear reactors use a process of controlled _____. <br><br> fission <br> fusion
    5·2 answers
  • Ions that consist of a single atom are called ........... ions
    13·1 answer
  • If He(g) has an average kinetic energy of 4790 J/mol under certain conditions, what is the root mean square speed of Cl2(g) mole
    6·1 answer
  • Need help :)….please
    12·1 answer
  • What is the balanced form of the equation C2H6 + O2→CO2+H2O?
    12·1 answer
  • A geochemist in the field takes a 36.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X.
    11·1 answer
  • Does gasoline (C8H12) have polar or non-polar molecules?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!