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What state of matter is phenol red solution?
A solution of phenol red is a liquid.
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 will happen to the color of sodium bicarbonate if phenol red is add?
If phenol red is added to sodium bicarbonate, the color of the solution will change based on the pH. In an acidic solution, phenol red will appear yellow, in a neutral solution it will be red, and in an alkaline solution (such as when sodium bicarbonate is added), it will turn a pink or magenta color.
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 color is phenol red at neutral pH?
Phenol red is a red color at neutral pH. It changes color depending on the pH of the solution it is in.
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.
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.
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 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.
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.
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.
When do you use methyl red instead of phenol red?
Methyl red is typically used in pH tests to determine if a solution is acidic (pH<4.4), while phenol red is typically used to approximate the pH of a solution (between pH 6.8-8.4). Use methyl red when you need to indicate a more acidic pH level, and phenol red for a broader pH range closer to neutral.
