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
Ahat [919]
3 years ago
14

Write the concentration equilibrium constant expression for this reaction. 2cui (s) + i2 (aq) → 2cu+2 (aq) + 4i− (aq)

Chemistry
2 answers:
spayn [35]3 years ago
5 0
2CuI (s) + I₂ (aq) → 2 Cu⁺² (aq) + 4 I⁻ (aq)

When writing an equilibrium expression, we use the following values:

A (aq) + 3B (aq) → 2C (aq) + 2D (aq)

The numbers were arbitrary molar equivalents and the uppercase letters are the molecules in the reaction. The species used in the equilibrium expression but all be in the same state, e.g., solid, liquid, aqeuous.

Kc = [C]²[D]² / [A][B]³

We write the formula by taking the concentration of the products, each to the power of their molar equivalent, and multiply them together. We then divide the products by the concentration of the reactants, also to the power of their molar equivalent.

Going back to the initial equation given, we can now write a Kc expression.

Kc = [Cu⁺²]²[I⁻]⁴ / [I₂]

It should be noted that the CuI (s) in the reaction was left out of the Kc expression. Pure solids and liquids are left out of the expression and only the aqueous species are included. The reason being that, in this case, solid CuI does not affect the amount of reactant at equilibrium. Therefore, we just leave the concentration for [CuI] = 1, and remove it from the expression.
Alex Ar [27]3 years ago
5 0

Answer : The expression for equilibrium constant for this reaction will be,

K_{eq}=\frac{[Cu^{2+}]^2[I^-]^4}{[I_2]}

Explanation :

The given balanced equilibrium reaction is,

2CuI(s)+I_2(aq)\rightleftharpoons 2Cu^{2+}(aq)+4I^-(aq)

The general expression for equilibrium constant for this reaction will be,

K_{eq}=\frac{\text{Concentration of products}}{\text{Concentration of reactants}}

As we know that the concentration of solid is equal to 1.

So, the expression for equilibrium constant for this reaction will be,

K_{eq}=\frac{[Cu^{2+}]^2[I^-]^4}{[I_2]}

You might be interested in
Describe how phospholipids form a barrier between water inside the cell and water outside the cell
Lynna [10]
<span>Phospholipids would have to form a phospholipid bilayer in order to achieve water on the outside and water inside. This is because the nonpolar tails of the phospholipids are facing each other in a water environment because they cannot interact with the water, only their own tails, while the phosphate heads of the molecule face the periphery of the tails and interact with water. Micelles are the simplest examples of these.</span>
6 0
3 years ago
Write the formulas of the compounds formed by specified cations with the following anions: OH-, ClO3-, SO3^2-, HPO4^2-. . . . Ex
Katena32 [7]
In the follow

<span>1)N<span>H4</span>OH,N<span>H4</span>Cl<span>O3</span>,(N<span>H4</span><span>)2</span>S<span>O3</span>,(N<span>H4</span><span>)2</span>HP<span>O4</span></span> <span>2)Al(OH<span>)3</span>,Al(Cl<span>O3</span><span>)3</span>,A<span>l2</span>(S<span>O3</span><span>)3</span>,A<span>l2</span>(HP<span>O4</span><span>)3</span></span> <span><span>3)Pb(OH<span>)4</span>,Pb(Cl<span>O3</span><span>)4</span>,Pb(S<span>O3</span><span>)2</span>,Pb(HP<span>O4</span><span>)2</span></span></span>
7 0
2 years ago
Read 2 more answers
When a theory is disproved by further evidence, which of the following occurs?
morpeh [17]
Number 2 is the correct answer
3 0
3 years ago
Read 2 more answers
Which are balanced plus if they aren’t please correct them
Veronika [31]

b,f,h are already balanced

7 0
3 years ago
Which is not a descriptor or tactic used by abusers?
attashe74 [19]
It should be B. All of the other choices are used often by abusers
4 0
3 years ago
Other questions:
  • What information does the chemical shift of an nmr signal convey? select the correct answer?
    15·2 answers
  • The physical state in which a substance has a no definite volume is:
    6·1 answer
  • true or false einsteins equation implies that a large amount of mass can be converted into a small amount of energy
    15·2 answers
  • The following is true about an index fossil:
    15·1 answer
  • What do you call all elements that are clearly not metals?
    5·1 answer
  • Molecules involved in a chemical reaction must meet to react. What is this concept called?
    12·1 answer
  • Given 2.91 moles of a gas in a 500 milliliter-container, if the temperature is found to be 31 degrees Celsius, what is the press
    7·2 answers
  • 2.00 mL of a 12.00 M HCL solution was reacted with 0.0450 grams of magnesium.?
    5·1 answer
  • Determine the energy released when an electrons transitions from n =3 to n = 2
    8·1 answer
  • What are tissues made up of?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!