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
algol [13]
3 years ago
9

The equilibrium constant, Kc, for the reaction below is 0.10 at 25oC. Find the equilibrium concentration of chlorine gas, Cl2(g)

, if the equilibrium concentrations of ICl(g) and I2(g) are known to be 0.50 M and 0.40 M respectively.
2 ICl(g) → Cl2(g) + I2(g)
Chemistry
1 answer:
Phantasy [73]3 years ago
3 0

Answer:

The equilibrium concentration of chlorine gas, Cl₂(g), is 0.0625 M

Explanation:

Chemical equilibrium is established when there are two opposite reactions that take place simultaneously at the same speed, so that no changes are observed as time passes, despite the fact that the substances present continue to react with each other.

The mathematical expression that represents Chemical Equilibrium is known as the Law of Mass Action and is stated as: The ratio of the product of high concentrations to the stoichiometric coefficients in the reaction of products and reactants remains constant at equilibrium. For any reaction:

aA + bB ⇄ cC + dD

the equilibrium constant Kc is calculated as:

Kc=\frac{[C]^{c} *[D]^{d} }{[A]^{a} *[B]^{b}}

In this case, you have:

2 ICl(g) → Cl₂(g) + I₂(g)

So, the equilibrium constant Kc is:

Kc=\frac{[Cl_{2} ]*[I_{2} ]}{[ICl]^{2} }

Being:

  • Kc= 0.10
  • [Cl₂]= ?
  • [ICl]= 0.50 M
  • [I₂]= 0.40 M

Replacing:

0.1=\frac{[Cl_{2} ]*0.40 M}{(0.50 M)^{2} }

Solving:

0.1=\frac{[Cl_{2} ]*0.40 M}{0.25 M^{2} }

0.1= 1.6 \frac{1}{M}* [Cl₂]

[Cl₂]= 0.1 ÷ 1.6 \frac{1}{M}

[Cl₂]= 0.0625 M

<u><em>The equilibrium concentration of chlorine gas, Cl₂(g), is 0.0625 M</em></u>

You might be interested in
What is another way to measure the average kinetic energy of a substance?
GuDViN [60]

Answer:

Using temperature or a thermometer

Explanation:

Since AKE equals = temperature, you can find the temperature of a substance with a thermometer, which gives the temperature.

8 0
2 years ago
Read 2 more answers
Rank the following atoms in order of decreasing first ionization energies (i.e., highest to lowest): Li, Be, Ba, F.
Minchanka [31]

Answer:

The order is:

F >Be >Li >Ba

Explanation:

Electrons are held in atoms by their  attraction to the nucleus which means that to remove an electron from the atom energy is needed.

The ionization energy is the minimum energy necessary to remove an electron from an atom in the gas phase and ground state, the electron removed being the outermost, that is, the furthest from the nucleus. The further away the electron is from the nucleus, the easier it is to remove it, that is, the less energy is needed.

By increasing the atomic number of the elements of the same group, the nuclear attraction on the outermost electron decreases, since the atomic radius increases. Then the ionization energy decreases. In other words, in a group it decreases from top to bottom because the size of the atom increases and it is easier to remove an external electron.

By increasing the atomic number of the elements of the same period, the nuclear attraction on the outermost electron increases, since the atomic radius decreases. Therefore, in a period, as the atomic number increases, the ionization energy increases. In summary, in a period it increases from left to right as the effective nuclear charge increases and it increases thanks to the decrease in the size of the atom.

Taking these considerations into account, the order is:

<u><em>F >Be >Li >Ba</em></u>

5 0
3 years ago
V1=450 mL V2 =? T1=45oC= 318.15 K T2= ​
Umnica [9.8K]

Answer:

onypointd

Explanation:

5 0
4 years ago
When optically active (R)-2-methylcyclohexanone is treated with either aqueous base or acid, racemization occurs. Explain.
IrinaK [193]

Answer:

See explanation

Explanation:

Racemization is said to occur when a 1:1 ratio of (+) and (-) enantiomers of a compound are produced in a reaction.

The reaction of optically active (R)-2-methylcyclohexanone with either aqueous base or acid leads to the formation of a planar enol species for reaction with acid and a planar enolate species for reaction with base.

Both reactions involves the formation of achiral species which reverts back to the chiral product with equal chances of the formation of both enantiomers of the product during the process. This leads to racemization of the product in both cases.

3 0
3 years ago
When 1.008 g of hydrogen reacts with chlorine in a calorimeter containing 500.00 g water, the
jeyben [28]

The heat released by reaction : C) -8870 J

<h3>Further explanation</h3>

Given

1.008 g of hydrogen

500.00 g water

The temperature rises 25.00 °C to 29.24 °C

Required

energy required

Solution

Q absorbed by water :

Q = m.c.Δt

Q = 500 g x 4.18 J/g C x (29.24-25)

Q = 8870.08 J

The reaction to produce HCl is an exothermic reaction (releasing heat), so that Q is negative

Q water = -Q HCl = -8870.08 J

5 0
3 years ago
Other questions:
  • The pH scale for acidity is defined by pH=−log10[H⁺] where [H⁺]is the concentration of hydrogen ions measured in moles per liter
    5·1 answer
  • 1.) Examine the scenario.
    12·1 answer
  • When ethanol is burned, it's converted into carbon dioxide and water. Does the ethanol undergo a physical change or a chemical c
    11·1 answer
  • PLEASE HELP!!!!
    6·1 answer
  • Given these reactions, X ( s ) + 1 2 O 2 ( g ) ⟶ XO ( s ) Δ H = − 668.5 k J / m o l XCO 3 ( s ) ⟶ XO ( s ) + CO 2 ( g ) Δ H = +
    9·1 answer
  • How many moles of solute are in 9.03 M solution with 15.8 L of solution?
    5·1 answer
  • What is the molarity of ethanol c2h5oh in an aqueous solution that is 36.4% ethanol by mass
    8·1 answer
  • Which two properties of an object are directly related to its thermal energy?
    10·2 answers
  • Which of the following pairs of compounds have the same empirical formula?
    15·1 answer
  • 2N2 + 3H2 → 2NH3
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!