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What happens with phenothalein is placed in Magnesium hydroxide?
Phenolphthalein in a solution containing magnesium hydroxide would remain colorless as it does not change color at a basic pH, where magnesium hydroxide is present. Phenolphthalein changes color in acidic solutions, not basic ones.
Determination the concentration of concentrated hydrochloric acid?
To determine the concentration of concentrated hydrochloric acid, you can perform a titration with a standardized solution of a base, such as sodium hydroxide. By carefully adding the base to the acid solution and monitoring the pH change using a pH indicator or a pH meter, you can identify the equivalence point and calculate the concentration of the acid using the volume and molarity of the base solution used in the titration.
Why doesn't the pH change when a solution is diluted?
When a solution is diluted, the number of hydrogen ions and hydroxide ions in the solution remain the same. As a result, the ratio of hydrogen ions to hydroxide ions, and thus the pH, remains constant. The pH scale is logarithmic, so even if the concentration of ions changes with dilution, it may not be enough to shift the pH significantly.
Action of sodium hydroxide on 0.1 bromothymol blue?
When sodium hydroxide reacts with 0.1 bromothymol blue, the solution turns blue initially due to the presence of bromothymol blue in its acidic form. As the sodium hydroxide neutralizes the acid, the solution changes color from blue to green and finally to yellow, indicating the increasing pH level. This color change is a result of the indicator's ability to change its molecular structure in response to changes in pH levels.
When copper sulfate mixed with sodium hydroxide is a form of physical change or chemical change?
The reaction between copper sulfate and sodium hydroxide is a chemical change, as new substances are formed with different chemical properties from the original substances. The blue copper sulfate solution reacts with the colorless sodium hydroxide solution to form a blue precipitate of copper hydroxide and sodium sulfate solution.
What happens when you mix calcium hydroxide and phenolphthalein?
When you mix calcium hydroxide and phenolphthalein, the solution will turn pink or magenta in color. This color change indicates that the solution is basic, as calcium hydroxide is a strong base. Phenolphthalein is a pH indicator that changes color in the presence of bases.
How much does the concentration change each time the pH changes one spot?
The concentration changes by roughly a factor of 10.
What happens with phenothalein is placed in Magnesium hydroxide?
Phenolphthalein in a solution containing magnesium hydroxide would remain colorless as it does not change color at a basic pH, where magnesium hydroxide is present. Phenolphthalein changes color in acidic solutions, not basic ones.
Determination the concentration of concentrated hydrochloric acid?
To determine the concentration of concentrated hydrochloric acid, you can perform a titration with a standardized solution of a base, such as sodium hydroxide. By carefully adding the base to the acid solution and monitoring the pH change using a pH indicator or a pH meter, you can identify the equivalence point and calculate the concentration of the acid using the volume and molarity of the base solution used in the titration.
What is the action of sodium hydroxide on the colour of red litmus?
Sodium hydroxide is a strong base and will turn red litmus paper blue. This color change occurs due to the high concentration of hydroxide ions present in the sodium hydroxide solution, which react with the indicator dye in the litmus paper, causing the color change.
Why doesn't the pH change when a solution is diluted?
When a solution is diluted, the number of hydrogen ions and hydroxide ions in the solution remain the same. As a result, the ratio of hydrogen ions to hydroxide ions, and thus the pH, remains constant. The pH scale is logarithmic, so even if the concentration of ions changes with dilution, it may not be enough to shift the pH significantly.
What happen when sodium hydroxide is added drop wise to a solution containing phenolphthalein?
When sodium hydroxide is added dropwise to a solution containing phenolphthalein, the solution will initially remain colorless. Once enough sodium hydroxide has been added to make the solution basic, the color will change from colorless to pink or purple, indicating the presence of hydroxide ions. Phenolphthalein is a pH indicator that changes color in the presence of a base.
How does concentration change after every spoon full of salt is added after the solution is saturated?
The concentration of the salt solution does NOT change- it is saturated.
What is the pH number of sodium hydroxide?
Sodium hydroxide does not have a pH number. The pH of a solution of sodium hydroxide depends entirely on the concentration of it in that solution. To learn how to determine the pH of a sodium hydroxide solution, see the Related Questions links.
Action of sodium hydroxide on 0.1 bromothymol blue?
When sodium hydroxide reacts with 0.1 bromothymol blue, the solution turns blue initially due to the presence of bromothymol blue in its acidic form. As the sodium hydroxide neutralizes the acid, the solution changes color from blue to green and finally to yellow, indicating the increasing pH level. This color change is a result of the indicator's ability to change its molecular structure in response to changes in pH levels.
When copper sulfate mixed with sodium hydroxide is a form of physical change or chemical change?
The reaction between copper sulfate and sodium hydroxide is a chemical change, as new substances are formed with different chemical properties from the original substances. The blue copper sulfate solution reacts with the colorless sodium hydroxide solution to form a blue precipitate of copper hydroxide and sodium sulfate solution.
Describe a solution that contains a buffer?
Acetic acid is added to the solution, but the pH of the solution does not change. Sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
