1. What is a pH Calculator?

Definition: This calculator determines the pH value from the hydrogen ion concentration in a solution.

Purpose: It helps chemists, biologists, and students quickly calculate pH values for various solutions.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• pH — Measure of acidity (0-14 scale)
• [H⁺] — Hydrogen ion concentration (moles per liter)

Explanation: The pH is the negative logarithm (base 10) of the hydrogen ion concentration.

3. Importance of pH Calculation

Details: pH measurement is crucial in chemistry, biology, medicine, environmental science, and many industrial processes.

4. Using the Calculator

Tips: Enter the hydrogen ion concentration in mol/L. The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the pH of pure water?
A: Pure water at 25°C has a pH of 7 (neutral), with [H⁺] = 1.0 × 10⁻⁷ mol/L.

Q2: What's considered acidic vs basic?
A: pH < 7 is acidic, pH = 7 is neutral, pH > 7 is basic (alkaline).

Q3: How precise is this calculation?
A: The calculation is mathematically precise, but real-world measurements may vary due to temperature and other factors.

Q4: Can I calculate [H⁺] from pH?
A: Yes, using [H⁺] = 10⁻ᵖᴴ. We may add this feature in a future update.

Q5: What's the pH range?
A: The pH scale typically ranges from 0 (very acidic) to 14 (very basic), though values outside this range are possible.