Sep 30, 2020 · Chemicals with pH values from 0 up to 7 are acids, those with a pH value of 7 are neutral, and those with pH values greater than 7 up to 14 are bases. Here is a table of pH values of …

Examples of common substances, like food and chemicals, and their positions on the pH scale are shown below. The colors from green to red indicate an acidic solution, green to violet indicate a basic …

Nov 7, 2025 · When substances dissolve in water, they can shift the pH. For example, vinegar and lemon juice are acidic, while substances like ammonia and laundry detergent are basic.

Dec 5, 2025 · What is the pH scale used for? The pH scale is used to measure the acidity or basicity of aqueous or other liquid solutions. For example, it is useful in agriculture.

On a pH scale, the acidity and alkalinity increase or decreases logarithmically. For instance, the acidic behaviour of solutions having pH 1 will be 10 times more than the aqueous solutions having the pH …

Interactive pH scale chart with examples, colors, and detailed explanations. Perfect for students and educators learning about acidity and alkalinity.

The pH scale has no fixed upper or lower limit and represents the concentration of hydrogen ions (H⁺). For instance, at pH 0, the hydronium ion concentration is 1 molar, and at pH 14, the hydroxide ion …

pH is a logarithmic scale. A solution that has a pH of 1.0 has 10 times the [H +] as a solution with a pH of 2.0, which in turn has 10 times the [H +] as a solution with a pH of 3.0 and so forth. pH is usually (but …

5 days ago · The pH scale ranges from 0 to 14, with 7 being neutral. The scale is logarithmic, which means each change of 1 unit represents a tenfold change in acidity or basicity. For example, a …

Explore the meaning of pH and how it relates to acidity and basicity. Learn how to calculate pH, pOH, [H₃O⁺], and [OH⁻], and understand what pH tells you about a solution.