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it tests how acid or alkaline a substance is, and can have many uses, from science, to gardening. It measures on the pH scale, which goes from 1-14 and comes in different forms, from electronic testers with digital readouts, to a strip of paper which changes color when dipped in a liquid
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoThe pH indicators are used to measure the pH value, in other words,the concentration of the hydrogen ions.
And in simpler terms, to measure the acidity or basicity of a given solution or a substance.
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What is the chemical used to identify changes in pH?
They are called pH indicators.
What can indicators identify?
Indicators are used frequently for testing pH; but many other indicators exist for other compounds or ions.
How indicators works?
pH indicators change their color according to the pH of a solution.
What will change color in the presence of an acid or a base?
pH indicators change the color depending upon acidity or basicity.
What is an indicator and what are the common indicators used for pH?
They are molecules which change color at a certain pH. You can tell at which pH your solution is by using indicators and matching up their colors. See the Web Links to the left for some examples of indicators (there are many) and at what pH each one changes color.Application of pH indicators:Definition of Titration: Titration is a common laboratory method of quantitative/chemical analysis that can be used to determine the concentration of a known reactant.Definition of a Buffer: A mixture that is resistant to change( or in this case to pH change). These are usually made up of a weak acid and its conjugate base.Now that you know what a titration is then lets see what they are used for:* Titrations * BuffersAn indicator in a titration is used to determine the pH of the solution when the reactant and the products are at the equivalence point(when moles of H+ from acid= moles of OH- from base).
What is the chemical used to identify changes in pH?
They are called pH indicators.
Dyes with pH sensitive colors are used as?
Indicators :)
What can indicators identify?
Indicators are used frequently for testing pH; but many other indicators exist for other compounds or ions.
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.
How indicators works?
pH indicators change their color according to the pH of a solution.
How can hydrogen be used as pH indicators?
The negative logarithm of the hydrogen ions activity is a measure of pH in the solution.
Why can't a single indicator be used to tell the pH of a solution?
their are indicators that can.
What do indicators tell us?
Indicators are used to tell a person whether or not a chemical is present or what pH a substance may be. Usually an indicator is a strip that is dipped into the substance and will change color based on the presence of a substance or pH.
What is the purpose of the bromcresol purple in the fermentation tube?
These are both used as pH indicators.
What is the purpose of phenol red or bromcresol purple in fermentation tube?
These are both used as pH indicators.
What is acid-base indicators?
These indicators change the color depending on the pH of the solution.
What indicators could be used to produce a color change at both pH 2 pH 8?
thymol blue,cresol red,and universal indicatior
