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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.
Universal Indicator Color Chart. Universal indicator shows different colours at different concentrations of hydrogen ions or the pH of a solution. The universal indicator takes on a new colour when an acid or basic solution is put into it.
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 pH Color Chart Acid Neutral Base . Created Date: 6/25/2012 4:59:57 PM ...
Universal indicator has many different colour changes, from red for strongly acidic solutions to dark purple for strongly alkaline solutions. In the middle, neutral pH 7 is indicated by green.
Universal indicator color charts are used to determine the pH of a solution. The charts display the colors and pH values of each pH unit from 4 to 10. The charts are available as an overhead transparency and as smaller chart cards.
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.