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a pH indicator
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What changes color at the endpoint of titration?
change in pH, changes the colour (of the indicator)
The pH range over which an indicator changes color is its?
transition interval
What is meant by the transition interval of an indicator?
The pH range over which an indicator changes color.
What is the point at which a base permanently changes the color of an acid solution?
Acidity does not in itself have any color, and there is no specific pH at which a solution will necessarily change color (temporarily or permanently) however, there are some chemicals called indicators which can be added to a solution in order to create colors that will react to changes in pH. Since there are a number of different indicators that you can use, again there is no specific pH, it depends upon what you are using.
What happens during an acidic base titration in the presents of an indication?
The indicator will change color as the pH changes.
What is it called when a substance changes color in response to pH?
This is a pH indicator.
What is halochromic?
A halochromic material is a material which changes color when pH changes occur.
What changes color at the endpoint of titration?
change in pH, changes the colour (of the indicator)
What does universal indicator test for?
A universal indicator changes color in response to the pH of a liquid. Do determine the pH of the liquid, you need to refer to a color chart that tells you which color indicates which pH.
What is the defintion for litmus?
This paper changes its color depending the pH of the solution.
The pH range over which an indicator changes color is its?
transition interval
What do you call a substance which is used to show changes in pH by its change in color?
An indicator
What is the purpose of bromothymel blue?
Bromothymol blue, also known as bromothymol sulfone phthalein, is a pH indicator for weak acids and bases. It changes color when the pH changes.
Why is a indicator's reaction in acids and bases a chemical change?
Indicates whether the substance is an acid or alkali.
What is meant by the transition interval of an indicator?
The pH range over which an indicator changes color.
What color does red cabbage juice change depending on the pH?
Cabbage contain Anthocyanins called Cyanidin. These are responsible for changing color with pH. Changing the pH affects the shape of the molecule which, in turn, changes its wavelength absorption.
What is a chemical dye that changes color based on the pH of a solution called?
acid base indicator
