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An acid turns the indicator litmus to what color? What is the color of a phenolphthalein indicator in an acidic solution? 1. A substance with a pH of 9 is considered {Blank}. \\ 2. If red litmus paper is used to test the substance it would turn what color? \\ a. ...
Phenolphthalein is a mild acid used in both medicine as an ingredient in laxatives and in science as a substance for testing the...
What is the Difference Between an Acid and a Base? Discussion Comments All The Science, in your inbox Our latest articles, guides, and more, delivered daily. Subscribe Categories Science Engineering Astronomy Chemistry Biology Physics Get Around ...
Indicators are often used in titration reactions to signal that the equivalence point pH is reached. The indicators added are weak acids or bases that exhibit different colors based on the pH. An example of an indicator is Phenolphthalein.
The scientific study of matter's characteristics and behaviour is known as chemistry.andare different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, ...
How Is Titration Carried Out? The analyte is measured and filled in a beaker. A few drops of an acid base indicator, such as methyl orange or phenolphthalein, is added to the analyte. Phenolphthalein remains colorless in acid, but turns pink in the presence of a base. Similarly, methyl or...
The remaining alkali is titrated against standard acid using phenolphthalein as indicator Measure A device used for measuring. Indicator A pointer or an index. Measure The act of measuring By measure the picture was four feet tall. Indicator An instrument used to monitor the operation or condition...
with a buret until you reach the end point, which means neutralization. Usually, an indicator, such as phenolphthalein, changes color at the end point, so you know the process is over. For example, in an acid-base titration, phenolphthalein will change the solution color from clear to pink...
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