Which Salt Produces the Lowest Carbonate Ion Concentration?

In summary, the equilibrium constants for MgCO3, CaCO3, and BaCO3 are 6.8x10-6, 5.0x10-9, and 2.6x10-9, respectively. The salt that will produce the lowest concentration of carbonate ion in solution is barium carbonate, as the lower the Kc value, the more the reactants are favored and the equilibrium position is far to the left, resulting in less dissociation and the lowest concentration of carbonate ion.
  • #1
Soaring Crane
469
0
The equilibrium constants are given for the following salts
MgCO3 = 6.8x10-6
CaCO3 = 5.0x10-9
BaCO3 = 2.6x10-9
What is the name of the salt that will produce the lowest concentration of carbonate ion in solution? Write the name not the chemical formula.



Is it barium carbonate?? Is there a direct relationship between carbonate concentration and E_c?

Thanks.
 
Physics news on Phys.org
  • #2
Yes, I think you are correct. The lower the Kc value, the more the reactants are favored (equilibrium position is far to the left), which would mean less dissociation, which would yield the lowest concentration of the carbonate ion on the products side.
 
  • #3
Soaring Crane said:
The equilibrium constants are given for the following salts
MgCO3 = 6.8x10-6
CaCO3 = 5.0x10-9
BaCO3 = 2.6x10-9

As worded it doesn't make any sense. There is no such thing as an equilibrium constant for a given substance. There is an equilibrium constant for a given reaction.

You are probably talking about solubility products. If so, you are right.

As for the concentration - write reaction equation, write equation for solubility product. What is relation between concentration of carbonate ion and barium ion? Substitute.
 

FAQ: Which Salt Produces the Lowest Carbonate Ion Concentration?

What is meant by ion concentration?

Ion concentration refers to the amount of ions present in a solution. It is typically measured in moles per liter (M) and is influenced by factors such as temperature, pressure, and the presence of other substances.

How do ions reach equilibrium in a solution?

Ions reach equilibrium in a solution when the rate of their formation is equal to the rate of their consumption. This occurs when there is no net change in the concentration of ions over time.

What factors affect ion concentrations in a solution?

The concentration of ions in a solution can be affected by factors such as temperature, pressure, pH, and the presence of other substances. In addition, the chemical properties of the ions themselves can also influence their concentration.

What is the relationship between ion concentration and conductivity?

Ion concentration and conductivity are directly related. As the concentration of ions in a solution increases, so does the conductivity, as there are more charged particles available to carry an electrical current.

How do I calculate ion concentration using the equilibrium constant?

The equilibrium constant (Keq) can be used to calculate the ion concentration in a solution. The equation for this is: [An+] * [Bm-] = Keq, where [An+] and [Bm-] represent the concentrations of the ions and n and m represent their respective charges.

Similar threads

Lowest concentration of ethanoate ions
Replies
2
Views
2K
Checking Answers of Chemistry Assignment
Replies
2
Views
8K
How Does Halving the Volume Affect Gas Equilibrium in a Closed System?
Replies
1
Views
3K
Thoughts on Excerpt from My Chem Prof's Textbook?
Replies
8
Views
4K
What Concepts Should You Review Before a Chemistry Test?
Replies
2
Views
7K
Can I get my intro Bio problems checked?
Replies
2
Views
2K
Help with Chemistry Equations Quiz Questions
Replies
2
Views
3K
Chem: if u can do this u = genius
Replies
6
Views
4K
What Causes Difficulty in Understanding Chemistry?
Replies
2
Views
7K
How Can Plasma Be Created and Ignited in Toroidal Fusion Reactors?
Replies
4
Views
3K

Hot Threads

Recent Insights

Back
Top