1. What is pH?

pH is a measure of the acidity or basicity of an aqueous solution. It is defined as the negative logarithm (base 10) of the hydrogen ion concentration. The pH scale ranges from 0 to 14, with 7 being neutral.

2. How Does the Calculator Work?

The calculator uses the pH formula:

Where:

• \( [H^+] \) — Hydrogen ion concentration (mol/L)

Explanation: The formula calculates the negative base-10 logarithm of the hydrogen ion concentration to determine the pH value of a solution.

3. Importance of pH Calculation

Details: pH calculation is essential in chemistry, biology, environmental science, and many industrial processes. It helps determine the acidity or basicity of solutions, which affects chemical reactions, biological functions, and environmental conditions.

4. Using the Calculator

Tips: Enter hydrogen ion concentration in mol/L. The value must be greater than 0. The calculator will compute the corresponding pH value.

5. Frequently Asked Questions (FAQ)

Q1: What does a pH value below 7 indicate?
A: A pH value below 7 indicates an acidic solution. The lower the pH, the more acidic the solution.

Q2: What does a pH value above 7 indicate?
A: A pH value above 7 indicates a basic (alkaline) solution. The higher the pH, the more basic the solution.

Q3: What is the pH of pure water?
A: Pure water has a pH of 7, which is neutral on the pH scale.

Q4: How accurate is this pH calculation?
A: The calculation is mathematically accurate based on the provided hydrogen ion concentration. However, real-world measurements may require consideration of temperature and other factors.

Q5: Can I calculate [H+] from pH?
A: Yes, you can calculate hydrogen ion concentration from pH using the formula: \( [H^+] = 10^{-pH} \).