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What color does NaoH turn when phenolphthalein?
NaOH turns pink when phenolphthalein is added.
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.
Color of phenolphthalein plus NaOH?
Phenolphthlalein is something like a pH indicator. When it is added to a liquid and the liquid turns pink, it means that the latter substance is basic.When the solution is added with NaOH, it will turn pink.Note that NaOH serves as a carbon dioxide neutralizer.The color of the solution will slowly fade after some time, because carbon dioxide is present in the air neutralizing the color effect of the NaOH.
What chemical reaction between the phenolphthalein and NaOH?
Phenolphthalein reacts with NaOH in a neutralization reaction, where the acidic H+ ions in phenolphthalein are replaced by the basic OH- ions from NaOH. This reaction leads to the formation of a pink color indicating the basic nature of the solution.
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 color does NaoH turn when phenolphthalein?
NaOH turns pink when phenolphthalein is added.
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.
Color of phenolphthalein plus NaOH?
Phenolphthlalein is something like a pH indicator. When it is added to a liquid and the liquid turns pink, it means that the latter substance is basic.When the solution is added with NaOH, it will turn pink.Note that NaOH serves as a carbon dioxide neutralizer.The color of the solution will slowly fade after some time, because carbon dioxide is present in the air neutralizing the color effect of the NaOH.
What chemical reaction between the phenolphthalein and NaOH?
Phenolphthalein reacts with NaOH in a neutralization reaction, where the acidic H+ ions in phenolphthalein are replaced by the basic OH- ions from NaOH. This reaction leads to the formation of a pink color indicating the basic nature of the solution.
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.
Why phenolphthalein used as best indicator against NaOH?
Phenolphthalein is a suitable indicator for NaOH because it changes color sharply from colorless to pink at the pH range of 8.2 to 10.0, which corresponds well to the endpoint of the titration of NaOH with an acid. This sharp color change allows for accurate and precise detection of the equivalence point in the titration process.
Which indicator is used in titration of naoh and h2so4?
Phenolphthalein is commonly used as an indicator in the titration of NaOH and H2SO4. It changes color from colorless to pink as the solution reaches a specific pH range, signaling the endpoint of the titration.
Best indicator for lactic acid when titrated against standard NaOH?
The best indicator for titrating lactic acid against standard NaOH is phenolphthalein. It changes color in the pH range of about 8.2 to 10, which is suitable for the endpoint of the titration of lactic acid (pKa ≈ 3.9). This indicator appears pink at high pH and colorless at acidic pH, allowing for a clear visual indication of the endpoint of the titration.
What indicator can you choose for the titration of oxalic acid with sodium hydroxide?
Phenolphthalein is a suitable indicator for the titration of oxalic acid with sodium hydroxide. It changes color from colorless to pink at the endpoint of the titration when the acid has been completely neutralized.
Which indicator would you use in the titration sulphuric acid with naoh?
In the titration of sulfuric acid with sodium hydroxide (NaOH), a pH indicator suitable for a strong acid-strong base titration, such as phenolphthalein, can be used. Phenolphthalein changes color at around pH 8.2-10, which is suitable for detecting the endpoint of the neutralization reaction between sulfuric acid and sodium hydroxide.
Does it take more NaOH in back titration with phenolphthalein?
Yes, it takes more NaOH in a back titration with phenolphthalein compared to a direct titration because the indicator reacts with the excess acid in the sample before the endpoint is reached. This means more base is required to neutralize the excess acid present.
What is the colour change in the titration of NaOH and C2H2O4 if using phenolphthalein as an indicator?
In the titration of NaOH and C2H2O4 using phenolphthalein, the colour change will occur at the endpoint when the solution transitions from pink to colourless. Phenolphthalein is pink in basic solutions and colourless in acidic solutions, so once all the oxalic acid is neutralized by the sodium hydroxide, the solution will turn colourless.
