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What happens to an elodea leaf when added a phenol red solution?
When an Elodea leaf is added to a phenol red solution, the leaf will release oxygen through photosynthesis. The oxygen will cause the phenol red solution to change color, indicating the presence of oxygen production.
What is the name of the pH indicator used in microbiology?
The pH indicator commonly used in microbiology is phenol red. It changes color depending on the pH of the solution, allowing for easy visualization of pH changes in bacteria cultures.
What is equilibrated phenol?
Equilibrated phenol is phenol that has been mixed with an appropriate buffer solution to maintain a specific pH. This helps to stabilize the phenol solution and make it suitable for various biological applications, such as DNA extraction and purification.
If you added the oxidizing agent chromate to a solution of phenol would the phenol be oxidized and would a green Cr3 plus solution be formed?
Yes, if chromate is added to a solution of phenol, the phenol can be oxidized. Chromate (CrO4^2-) acts as an oxidizing agent, converting phenol into various oxidized products, such as quinones. During this reaction, the chromate ion is reduced to Cr³⁺, which is typically a green solution. Thus, the presence of a green Cr³⁺ solution indicates that the oxidation of phenol has occurred.
What does yellow indicate on the ph scale?
It depends on what indicator you are using. Yellow with the bromothymol blue indicator is acidic, yellow with the methyl orange indicator is basic, yellow with the phenol red indicator is acidic and yellow with the universal indicator is acidic.
What happens when you add phenol red indicator to calcium chloride?
When phenol red indicator is added to calcium chloride, there won't be any specific chemical reaction between the two. Phenol red is commonly used as a pH indicator, changing color based on the acidity or alkalinity of a solution. However, since calcium chloride does not significantly affect the pH of a solution, the color of phenol red may not change in this case.
What happens to an elodea leaf when added a phenol red solution?
When an Elodea leaf is added to a phenol red solution, the leaf will release oxygen through photosynthesis. The oxygen will cause the phenol red solution to change color, indicating the presence of oxygen production.
Does phenol red change baking soda to red?
Phenol red is a pH indicator that changes color in response to pH changes. It turns yellow in acidic conditions and red in basic conditions. When added to a solution containing baking soda (sodium bicarbonate), which is a basic substance, phenol red can turn red.
Why does phenol red change yellow?
Phenol red changes yellow in acidic conditions due to a shift in its chemical structure, which occurs when the hydrogen ions in the solution cause the indicator to undergo a color change. This change is reversible when the solution becomes basic again.
Phenol red dropped into distilled water would produce what color?
Phenol red in distilled water would produce a red color. This is because phenol red is a pH indicator that changes color based on the acidity of the solution. In neutral to basic solutions, phenol red appears red.
What state of matter is phenol red solution?
A solution of phenol red is a liquid.
What is the name of the pH indicator used in microbiology?
The pH indicator commonly used in microbiology is phenol red. It changes color depending on the pH of the solution, allowing for easy visualization of pH changes in bacteria cultures.
Is phenol red is a strong base and acids?
Phenol red is a pH indicator that changes color in response to changes in pH, but it is not a base or an acid itself. It is commonly used to visually indicate the pH of a solution by changing from yellow (acidic) to red (neutral) to purple (basic) in color.
What happens if you add phenol red to water and blow in it with a straw?
Just did this in my BIO 100 lab at SDSU so I know this answer... Background: Phenol red is a pH indicator which is yellow in acidic solutions and red in basic solutions. When you blow into the water with the phenol red, you are adding Carbon Dioxide into the solution. Carbon Dioxide would make this solution more acidic. Therefore this presence of Carbon Dioxide would change the solution color from red to a more orange - yellow color. Hope that helps!
What is equilibrated phenol?
Equilibrated phenol is phenol that has been mixed with an appropriate buffer solution to maintain a specific pH. This helps to stabilize the phenol solution and make it suitable for various biological applications, such as DNA extraction and purification.
If you added the oxidizing agent chromate to a solution of phenol would the phenol be oxidized and would a green Cr3 plus solution be formed?
Yes, if chromate is added to a solution of phenol, the phenol can be oxidized. Chromate (CrO4^2-) acts as an oxidizing agent, converting phenol into various oxidized products, such as quinones. During this reaction, the chromate ion is reduced to Cr³⁺, which is typically a green solution. Thus, the presence of a green Cr³⁺ solution indicates that the oxidation of phenol has occurred.
What is an indicator used to detect an acid or base?
An indicator used to detect an acid or base is a substance that changes color in the presence of acids or bases. Examples of indicators include litmus paper, phenolphthalein, and universal indicator solution.
