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Do acids or base react with an indicator?
They both react, but and acid will create a low pH (1,2,3), and the color will turn red or orange. A base will have a high pH (11,12,13) and the color will be blue or green. edit: yes they do react. if it is an acid it has a pH of 1-6, 7 is neutral and a pH of 8-13 is a base. Presence of acids and bases can lead to protonation / deprotonation of the indicator molecule, which changes its colour
How indicators works?
pH indicators change their color according to the pH of a solution.
How many types of indictors are used in titration?
There are two main types of indicators used in titration: color indicators and pH indicators. Color indicators change color at specific pH ranges to indicate the endpoint of the titration, while pH indicators change color based on the pH of the solution.
How are pH indicators classified?
pH indicators are classified based on the pH range over which they change color. They can be classified as either acidic, basic, or universal indicators. Acidic indicators change color in acidic solutions, basic indicators change color in basic solutions, and universal indicators change color over a wide pH range.
Why can't a single indicator be used to tell the pH of a solution?
A single indicator cannot be used to accurately determine the pH of a solution because indicators change color over a range of pH values rather than at a specific pH. Different indicators have varying color changes at different pH ranges, so using multiple indicators or pH meters provides a more precise measure of the pH of a solution.
What is acid-base indicators?
These indicators change the color depending on the pH of the solution.
How do acids react with pH paper?
Acids react with pH paper by causing a color change that indicates the acidity of the solution. The paper contains pH indicators that typically turn red or pink in acidic conditions, reflecting a low pH value (usually below 7). The intensity of the color change can provide a rough estimate of the solution's pH level. This reaction allows for quick and easy assessment of acidity in various substances.
What will change color in the presence of an acid or a base?
pH indicators change the color depending upon acidity or basicity.
What can indicators identify?
Indicators are used frequently for testing pH; but many other indicators exist for other compounds or ions.
Examples of plant indicators for measuring pH values?
a plant pH indicator is onion
Where do you use pH indicators in real life?
checking the pH level in a chlorinated pool
What compound changes color when used to determine the pH of a substance?
There are a variety of indicators used to determine change in pH. Different indicators change during certain ranges of pH. For example, phenolphthalein turns from clear to pink in a basic solution (approximately 7.8 to 9). There are universal indicators that cover the whole pH scale.
