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What is the colour of phenolphthalein after addition of dilute HCl?
The color of phenolphthalein after the addition of dilute HCl is colorless. Phenolphthalein is typically pink in basic solutions but turns colorless in acidic conditions due to the change in pH.
What is the equation of sodium hydroxide with phenolphthalein with hydrochloric acid?
The equation for the reaction between sodium hydroxide (NaOH) and hydrochloric acid (HCl) using phenolphthalein indicator is: NaOH + HCl → NaCl + H2O Phenolphthalein is a pH indicator that turns pink in basic solutions and colorless in acidic solutions.
Why does hydrochloric acid change phenolphthalein purple to colorless?
Hydrochloric acid is a strong acid that neutralizes the alkaline properties of phenolphthalein, turning it colorless. This reaction occurs because the acid donates hydrogen ions, causing a shift in the pH balance and resulting in the loss of the pink or purple color in phenolphthalein.
In HCl and NaOH titration which indicator is used?
Phenolphthalein is commonly used as an indicator in the titration of hydrochloric acid (HCl) with sodium hydroxide (NaOH). Phenolphthalein changes color from colorless to pink at the endpoint of the titration when all the acid has been neutralized by the base.
What indicator or indicators are used for HCl versus KOH?
For the titration of hydrochloric acid (HCl) versus potassium hydroxide (KOH), phenolphthalein is commonly used as an indicator. Phenolphthalein changes color from colorless to pink at pH 8.2-10.0, which corresponds to the endpoint of the titration when all the HCl has reacted with KOH.
What happens when you mix sodium bicarbonate solution and phenolphthalein?
it turns into a pinkish red color
What is the colour of phenolphthalein after addition of dilute HCl?
The color of phenolphthalein after the addition of dilute HCl is colorless. Phenolphthalein is typically pink in basic solutions but turns colorless in acidic conditions due to the change in pH.
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.
What happens when you mix Sodium hydroxide and phenolphthalein?
When you mix sodium hydroxide and phenolphthalein, you will observe a color change. Phenolphthalein is commonly used as a pH indicator, turning pink in basic solutions (such as sodium hydroxide) and colorless in acidic solutions. This color change is a result of the chemical reaction between the sodium hydroxide and phenolphthalein molecules.
What is the equation of sodium hydroxide with phenolphthalein with hydrochloric acid?
The equation for the reaction between sodium hydroxide (NaOH) and hydrochloric acid (HCl) using phenolphthalein indicator is: NaOH + HCl → NaCl + H2O Phenolphthalein is a pH indicator that turns pink in basic solutions and colorless in acidic solutions.
Why does hydrochloric acid change phenolphthalein purple to colorless?
Hydrochloric acid is a strong acid that neutralizes the alkaline properties of phenolphthalein, turning it colorless. This reaction occurs because the acid donates hydrogen ions, causing a shift in the pH balance and resulting in the loss of the pink or purple color in phenolphthalein.
In HCl and NaOH titration which indicator is used?
Phenolphthalein is commonly used as an indicator in the titration of hydrochloric acid (HCl) with sodium hydroxide (NaOH). Phenolphthalein changes color from colorless to pink at the endpoint of the titration when all the acid has been neutralized by the base.
What indicator or indicators are used for HCl versus KOH?
For the titration of hydrochloric acid (HCl) versus potassium hydroxide (KOH), phenolphthalein is commonly used as an indicator. Phenolphthalein changes color from colorless to pink at pH 8.2-10.0, which corresponds to the endpoint of the titration when all the HCl has reacted with KOH.
What can be added to HCl to turn red?
Adding phenolphthalein indicator to hydrochloric acid (HCl) will turn it red in basic solutions.
What would you mix an alkali or acid with to get a coloured substaince?
You could mix an acid or alkali with an indicator such as methyl orange or phenolphthalein. Phenolphthalein is colorless in an acidic medium and pink in an alkaline one.
Is methyl orange the indicator used in the titration of na2co3 against hcl solution?
No, methyl orange is not commonly used as the indicator in the titration of Na2CO3 against HCl solution. Phenolphthalein is the indicator of choice for this titration, as the endpoint is at a pH of around 8.2, which is the color change range of phenolphthalein.
What is the reaction of hydrochloric acid and phenolphthalein?
Hydrochloric acid (HCl) is a strong acid that will react with phenolphthalein, a pH indicator, causing it to turn colorless in acidic conditions. This reaction occurs due to the change in pH of the solution, which shifts the equilibrium of the phenolphthalein molecule leading to its color change.
