Understanding the logarithmic scale of acidity and alkalinity
In short: This video explains how the pH scale measures the acidity or basicity of a substance, clarifying the relationship between pH values and chemical concentration.
The pH scale serves as a metric to determine whether a substance is acidic, basic, or neutral. Substances with a pH below 7 are classified as acidic, while those above 7 are considered basic (or alkaline). A pH of exactly 7 indicates a neutral substance.
Crucially, the scale is logarithmic. This means that every single step change on the scale represents a 10-fold change in concentration.
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Sources
- Summary by Intellect · source: Introduction to pH | Biology | Khan Academy
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