pH Calculator

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A pH Calculator is a tool used to determine the pH level of a solution, which measures how acidic or basic (alkaline) it is. pH is based on the concentration of hydrogen ions (H⁺) in the solution and is expressed on a scale from 0 to 14:

  • 0–6: Acidic (like lemon juice, vinegar)
  • 7: Neutral (like pure water)
  • 8–14: Basic/Alkaline (like baking soda, bleach)

Why use a pH Calculator?

  • Chemistry experiments: pH levels affect chemical reactions.
  • Health and biology: pH balance is crucial in the human body, like blood and stomach acidity.
  • Agriculture: Soil pH affects plant growth.
  • Water quality: Ensures safe drinking water and balanced aquariums or pools.

How does a pH Calculator work?
The pH of a solution is calculated using the formula:

pH=−log⁡[H⁺]

Where:

  • [H⁺] is the concentration of hydrogen ions in moles per liter (mol/L)
  • log is the logarithm (base 10)

For example:
If the hydrogen ion concentration is 1×10−3mol/L:

pH = − log(1 × 10 −3) = 3

This tells us the solution is acidic.

When would you use a pH Calculator?

  • In labs: For titration experiments and preparing solutions.
  • In health: Monitoring acidity in medical tests or skincare.
  • For home use: Checking pH of pool water, soil, or homemade cleaning solutions.
  • In industries: Like food production, pharmaceuticals, and environmental testing.