If a 250.0 mL saturated solution of ionic compound MX₂ (Molar mass = 89.86 g/mol) contains 0.131 mg MX₂, which is the Ksp of MX₂? O 1.2 x 10-8 O 6.8 x 10-11 O 3.4 x 10-11 O 7.9 x 10-16
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.
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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.
![### Solubility Product Constant (Ksp) Calculation
**Problem Statement:**
If a 250.0 mL saturated solution of ionic compound MX₂ (Molar mass = 89.86 g/mol) contains 0.131 mg MX₂, what is the Ksp of MX₂?
**Options:**
- \( 1.2 \times 10^{-8} \)
- \( 6.8 \times 10^{-11} \)
- \( 3.4 \times 10^{-11} \)
- \( 7.9 \times 10^{-16} \)
---
**Explanation:**
To solve this problem, we first need to calculate the molarity of the MX₂ solution and then use it to find the solubility product constant (Ksp).
1. **Convert mg to g:**
\[
0.131\ \text{mg} = 0.131 \times 10^{-3}\ \text{g} = 0.000131\ \text{g}
\]
2. **Calculate the moles of MX₂:**
\[
\text{Moles of MX₂} = \frac{\text{mass}}{\text{molar mass}} = \frac{0.000131\ \text{g}}{89.86\ \text{g/mol}} = 1.46 \times 10^{-6}\ \text{mol}
\]
3. **Calculate the molarity of the solution:**
\[
\text{Molarity (M)} = \frac{\text{moles of solute}}{\text{volume of solution in liters}} = \frac{1.46 \times 10^{-6}\ \text{mol}}{0.250\ \text{L}} = 5.84 \times 10^{-6}\ \text{M}
\]
4. **Dissociation of MX₂:**
\[
\text{MX₂} \rightleftharpoons \text{M}^{2+} + 2\text{X}^{-}
\]
- Let \( s \) be the molarity of MX₂ (5.84 \times 10^{-6} M).
- Then, [M²⁺] = \( s \) and [X⁻] = 2\(](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F277ae00b-d056-42ed-a729-386f4fca5973%2F607dbb65-f7d7-4b0a-8b7e-fe284797790d%2Fdqbmt3_processed.jpeg&w=3840&q=75)
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