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Indicators :)
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What are dyes with ph-sensitive colors used for?
They are used in indicator strips that reveal the acidity or alkalinity of a solution.
Name the three most common ways of measuring pH?
least sensitive- universal indicator sensitive- litmus papermost sensitive- pH meter
What is PH sensitive to?
podium of hydrogen
Why would a pH sensitive color indicator be used to reveal the presence of a contaminant in a fluid that should be sterile?
Yes.
How are acid and alkaline products typically detected in a culture medium?
pH indicating dyes
What are dyes with ph-sensitive colors used for?
They are used in indicator strips that reveal the acidity or alkalinity of a solution.
What acid dyes definition?
These substances are dyes applied at low pH, generally on wool.
How can a person distinguish among acids bases and neutral substances?
With a pH meter or pH paper. Other indicator dyes (e.g. litmus, phenolphthalein) may be used if it is not necessary to determine the exact numerical pH value.
Name the three most common ways of measuring pH?
least sensitive- universal indicator sensitive- litmus papermost sensitive- pH meter
Could a pH sensitive color indicator be used to reveal the presence of a contaminant in a fluid?
yes
What is PH sensitive to?
podium of hydrogen
Why a pH sensitive color indicator be used to reveal the presence of a contamination in a fluid that should be sterile?
Yes.
Formula and pH of phenopthelin?
Phenolphthalein is a sensitive pH indicatorwith the formula C20H14O4
What color is the universal indicator in an alkali?
Many soluble dyes change their color with changes in pH (a measure of the concentration of acid in a solution). Such dyes may be used to indicate when the acid (base) in a solution has been neutralized by addition of an equal amount of base (acid). Each indicator dye has a particular range of pH for which it is useful. pH test strips and papers often incorporate two or more dyes to extend the range of pH over which they can be used. The best indicator dyes are strongly colored (so that only small amounts are needed), undergo an easily seen change with pH (either from one color to another, or from clear to colored), are nontoxic, and are chemically stable.
Why would a pH sensitive color indicator be used to reveal the presence of a contaminant in a fluid that should be sterile?
Yes.
Is a tomato plant PH sensitive?
Tomato plants are sensitive to the pH levels in the garden soil. The optimum levels should be between 6-6.8
How are acid and alkaline products typically detected in a culture medium?
pH indicating dyes
