1. What is pH Calculation?

pH calculation determines the acidity or basicity of a solution. For strong acids and bases, the pH can be directly calculated from the concentration using the formula pH = -log(C), where C is the molar concentration of H⁺ ions for acids or OH⁻ ions for bases.

2. How Does the Calculator Work?

The calculator uses the pH formula:

Where:

• \( C \) — Molar concentration (mol/L)
• \( \log \) — Base-10 logarithm

Explanation: The formula calculates the negative logarithm of the hydrogen ion concentration, providing a measure of solution acidity.

3. Importance of pH Calculation

Details: pH measurement is essential in chemistry, biology, environmental science, and many industrial processes. It helps determine chemical reactivity, biological activity, and environmental conditions.

4. Using the Calculator

Tips: Enter the molar concentration in mol/L. The value must be greater than 0. The calculator will compute the pH value for strong acids or bases.

5. Frequently Asked Questions (FAQ)

Q1: What is the pH range?
A: pH ranges from 0 to 14, with 7 being neutral. Values below 7 are acidic, above 7 are basic.

Q2: Does this work for weak acids/bases?
A: No, this formula is specifically for strong acids and bases that completely dissociate in water.

Q3: What units should concentration be in?
A: Concentration should be in moles per liter (mol/L or M).

Q4: How accurate is this calculation?
A: For strong acids/bases at moderate concentrations, this calculation provides accurate results. Activity coefficients may be needed for high concentrations.

Q5: What about temperature effects?
A: While the formula itself doesn't account for temperature, pH values can be temperature-dependent due to changes in water dissociation constant.