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.
When a large amount of solvent is added to a concentrated solution, the concentration of the solution decreases. This process is known as dilution. The overall volume of the solution increases, but the amount of solute remains the same.
Adding base will increase pH-level
Phenol is slightly soluble in water due to hydrogen bonding between the hydroxyl group of phenol and water molecules. However, when excess phenol is added, it disrupts the hydrogen bonding network of water molecules, making it less soluble. This is because phenol-phenol interactions become stronger than phenol-water interactions, leading to precipitation.
When more solvent is added to a solution, the concentration of the solute decreases. This is because the total volume of the solution increases while the amount of solute remains constant, resulting in a more diluted solution.
Probable tetrabromoethane is formed.
tribromophenol is formed.
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.
the critical solution temperature for phenol water system increases
Hydrochloric acid (HCl) is added to the solution during the estimation of phenol to convert phenol into its corresponding chloride salt, which is easier to separate and quantify. This reaction helps in the extraction and analysis of phenol from the sample.
tribromophenol is formed.
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.
It will dissolve in the solution.
Sh!t happens.
Sodium carbonate is added in phenol content determination to help neutralize the acidic phenol solution, making it less acidic. This step allows for accurate measurement of phenol content by stabilizing the pH level of the solution. Additionally, sodium carbonate helps in the formation of a colored complex with phenol, which can be easily measured and quantified.
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.
It will dissolve
In the presence of aqueous NaOH, phenol undergoes nucleophilic aromatic substitution reaction to form sodium phenoxide. When CCl4 is added, no reaction occurs as CCl4 is non-reactive towards phenoxide ion.