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Download and print a universal indicator color chart. Learn how to make universal indicator solution and interpret pH results.
Universal indicator is a mixture of several different pH indicators that displays smooth color changes over a range of pH values. There are multiple universal indicator formulas, so the pH ranges and colors depend on the formula.
A universal indicator is a pH indicator made of a solution of several compounds that exhibit various smooth colour changes over a wide range pH values to indicate the acidity or alkalinity of solutions. A universal indicator can be in paper form or present in a form of a solution.
Explain that the chart shows the range of color changes for universal indicator when acidic or basic solutions are added to the indicator. Point out that each color has a number associated with it and that students will learn more about these numbers later in the lesson.
Universal Indicator, which is a solution of a mixture of indicators is able to also provide a full range of colors for the pH scale. A variety of indicators change color at various pH levels. A properly selected acid-base indicator can be used to visually "indicate" the approximate pH of a sample.
Universal indicators and pH paper contain a mixture of indicators and exhibit different colors at different pHs. The chart below presents several indicators, their colors, and their color-change intervals.
Universal Indicator pH Color Chart Acid Neutral Base . Created Date: 6/25/2012 4:59:57 PM ...