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How To Calculate Molar Solubility Using Ksp

Molar Solubility Formula:

\[ s = \sqrt{K_{sp}} \]

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1. What Is Molar Solubility?

Molar solubility (s) is the number of moles of a solute that can dissolve per liter of solution to form a saturated solution. For a 1:1 electrolyte, it is directly related to the solubility product constant (K_sp).

2. How Does The Calculator Work?

The calculator uses the molar solubility formula:

\[ s = \sqrt{K_{sp}} \]

Where:

Explanation: This formula applies specifically to 1:1 electrolytes (like AgCl, BaSO₄) where the dissolution produces equal numbers of cations and anions.

3. Importance Of Molar Solubility Calculation

Details: Calculating molar solubility helps predict precipitation, design separation processes, understand solubility behavior, and optimize chemical reactions in analytical chemistry and industrial processes.

4. Using The Calculator

Tips: Enter the solubility product constant (K_sp) value. The value must be positive and non-zero. The calculator will compute the molar solubility for a 1:1 electrolyte.

5. Frequently Asked Questions (FAQ)

Q1: What types of compounds does this formula apply to?
A: This formula applies specifically to 1:1 electrolytes such as AgCl, BaSO₄, CaCO₃ where the dissolution produces equal numbers of cations and anions.

Q2: How do I calculate for different stoichiometries?
A: For compounds with different stoichiometries (like AB₂ or A₂B), the formula changes. For AB₂: \( s = \sqrt[3]{K_{sp}/4} \), for A₂B: \( s = \sqrt[3]{K_{sp}/4} \).

Q3: What factors affect molar solubility?
A: Temperature, pH, common ion effect, and ionic strength can significantly affect molar solubility values.

Q4: Why is K_sp important?
A: K_sp indicates how soluble a compound is - lower K_sp means less soluble, higher K_sp means more soluble under standard conditions.

Q5: Can this calculator be used for all solubility calculations?
A: No, this calculator is specifically designed for 1:1 electrolytes. Different stoichiometries require different calculation methods.

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