1. What is pH of NaCl Solution?

NaCl (sodium chloride) is a neutral salt formed from a strong acid (HCl) and a strong base (NaOH). When dissolved in water, it produces a solution with pH = 7, making it neutral.

2. How Does the Calculator Work?

The calculator uses the principle:

Where:

• pH — Measure of acidity/alkalinity (dimensionless)
• 7 — Neutral pH value

Explanation: NaCl solutions always have pH = 7 regardless of concentration because neither Na⁺ nor Cl⁻ ions hydrolyze in water.

3. Importance of pH Calculation

Details: Understanding that NaCl solutions are neutral is important in chemistry, biology, and various industrial applications where pH control is crucial.

4. Using the Calculator

Tips: Enter the concentration of NaCl solution in mol/L. The calculator will return pH = 7 as NaCl is always neutral.

5. Frequently Asked Questions (FAQ)

Q1: Why is NaCl solution always pH 7?
A: Because NaCl is formed from strong acid and strong base, and neither ion undergoes hydrolysis in water.

Q2: Does concentration affect pH of NaCl solution?
A: No, NaCl solutions maintain pH = 7 regardless of concentration.

Q3: What is the pH range for NaCl solutions?
A: Always exactly 7 (neutral) under standard conditions.

Q4: Are there any exceptions?
A: In extremely concentrated solutions or non-aqueous solvents, pH may vary slightly, but in most practical applications it remains 7.

Q5: How does this compare to other salts?
A: Unlike salts from weak acids or bases, NaCl doesn't affect the pH of water when dissolved.