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.
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.
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.
The best indicator to use in the titration of a weak base against a strong acid is phenolphthalein. Phenolphthalein changes color from colorless to pink at a pH range of about 8.2 to 10.0, which is suitable for detecting the endpoint of the titration when the weak base is completely neutralized by the strong acid.
One commonly used acid-base indicator is phenolphthalein, which is colorless in acidic solutions and pink in basic solutions. Another popular indicator is litmus, which turns red in acidic solutions and blue in basic solutions. The choice of the best indicator depends on the specific experiment and the pH range being tested.
Sodium hydroxide (NaOH) is the best alkali for neutralizing hydrochloric acid (HCl) because it reacts with the acid to form water and sodium chloride, a neutral salt. The equation for the reaction is: HCl + NaOH → NaCl + H2O.
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.
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.
The best indicator to use in the titration of a weak base against a strong acid is phenolphthalein. Phenolphthalein changes color from colorless to pink at a pH range of about 8.2 to 10.0, which is suitable for detecting the endpoint of the titration when the weak base is completely neutralized by the strong acid.
One commonly used acid-base indicator is phenolphthalein, which is colorless in acidic solutions and pink in basic solutions. Another popular indicator is litmus, which turns red in acidic solutions and blue in basic solutions. The choice of the best indicator depends on the specific experiment and the pH range being tested.
Sodium hydroxide (NaOH) is the best alkali for neutralizing hydrochloric acid (HCl) because it reacts with the acid to form water and sodium chloride, a neutral salt. The equation for the reaction is: HCl + NaOH → NaCl + H2O.
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an indicator is capable of determining if a substance is basic or acidic or neutral. if you are just looking for if it is a basic or acidic. then you could you could use red litmus or blue litmus. if you are looking for the pH of a substance try using: red cabbage indicator phenolphthalein i hope i answered your question!
Cellulose cell wall is the best indicator of plant based substance.
The pH of pepsin in NaOH would depend on the concentration of NaOH added. Pepsin is an enzyme that functions best at acidic pH levels, around pH 2.0. Adding NaOH, a base, would increase the pH, potentially inactivating the pepsin enzyme as it moves away from its optimal pH range for activity.
GDP
Aspire.