Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
![**Question 12 of 52: Weak Acid Dissociation Constant (Ka) Calculation**
An unknown weak acid with a concentration of 0.066 M has a pH of 1.80. What is the \( K_a \) of the weak acid?
**Key Concepts:**
- **Weak Acids**: Weak acids do not completely dissociate in solution. Their dissociation can be described by an equilibrium constant, \( K_a \).
- **pH and \( H^+ \) Concentration**: The pH of a solution is related to the concentration of hydrogen ions (\( H^+ \)) by the formula:
\[
pH = -\log[H^+]
\]
- **Finding \( K_a \)**: For a weak acid, \( HA \), dissociating into \( H^+ \) and \( A^- \), the equilibrium expression is:
\[
K_a = \frac{[H^+][A^-]}{[HA]}
\]
**Calculator Panel:**
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- Buttons for basic functions such as backspace (\( \times \)) to correct entries, clear (\( C \)), and scientific notation (\( \times 10^x \)).
To calculate \( K_a \), first, determine the \( [H^+] \) using the pH, and then apply the equilibrium expression to find \( K_a \) using the given concentrations.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F66f02499-6a2e-4c33-a9a6-3b6555c8b394%2Fa9d023fe-699c-48ea-96ee-a9271f06f98a%2Fd74z21_processed.png&w=3840&q=75)
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