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A strong base and weak acid gives a basic salt. Therefore the end point of a titration between a strong base and a weak base has a pH value above than 7.0 at 298K. As the end point of phenolphthalein is around 9.1 (~can vary between the values of 8.1 to 10.1) at this temperature, it would give more accurate results.
What else can I help you with?
What color indicates that a titration using phenolphthalein has reached the end point?
The color pink indicates that a titration using phenolphthalein has reached the end point.
Why is phenolphthalein not suitable for titration involving carbonate?
Phenolphthalein is not suitable for titrations involving carbonates because it is not sensitive enough to detect the pH endpoint when carbonates are involved. Carbonates react with the strong acid used in the titration, forming bicarbonates, which further react to release carbon dioxide, making it challenging to accurately determine the endpoint using phenolphthalein.
Why only use a few drops of phenolphthalein?
Using only a few drops of phenolphthalein is sufficient because it is a strong indicator and changes color quickly in reaction to changes in pH. Using a small amount helps to avoid overdosing the solution with the indicator, which could affect the accuracy of the titration.
Can you use methyl orange and phenolphthalein fro weak acid weak base titrations?
first of all remember that titr'n b/w weak acid and weak base is impossible. weak acid*strong base-phenolphthalein str acid*weak base-methyl orange if both are strong can use both.
How toPreperation and standardisation of 0.1n oxalic acid?
To prepare 0.1N oxalic acid solution, dissolve 6.3g of oxalic acid dihydrate (H2C2O4·2H2O) in 1 liter of distilled water. To standardize the solution, titrate it against a standardized solution of sodium hydroxide (NaOH) using phenolphthalein as an indicator until a faint pink color persists for at least 30 seconds. Calculate the concentration of the oxalic acid solution using the equation: (N1)(V1) = (N2)(V2), where N is the normality and V is the volume. Adjust the concentration accordingly for accuracy.
What color indicates that a titration using phenolphthalein has reached the end point?
The color pink indicates that a titration using phenolphthalein has reached the end point.
Why is phenolphthalein not suitable for titration involving carbonate?
Phenolphthalein is not suitable for titrations involving carbonates because it is not sensitive enough to detect the pH endpoint when carbonates are involved. Carbonates react with the strong acid used in the titration, forming bicarbonates, which further react to release carbon dioxide, making it challenging to accurately determine the endpoint using phenolphthalein.
Why only use a few drops of phenolphthalein?
Using only a few drops of phenolphthalein is sufficient because it is a strong indicator and changes color quickly in reaction to changes in pH. Using a small amount helps to avoid overdosing the solution with the indicator, which could affect the accuracy of the titration.
Can you use methyl orange and phenolphthalein fro weak acid weak base titrations?
first of all remember that titr'n b/w weak acid and weak base is impossible. weak acid*strong base-phenolphthalein str acid*weak base-methyl orange if both are strong can use both.
How toPreperation and standardisation of 0.1n oxalic acid?
To prepare 0.1N oxalic acid solution, dissolve 6.3g of oxalic acid dihydrate (H2C2O4·2H2O) in 1 liter of distilled water. To standardize the solution, titrate it against a standardized solution of sodium hydroxide (NaOH) using phenolphthalein as an indicator until a faint pink color persists for at least 30 seconds. Calculate the concentration of the oxalic acid solution using the equation: (N1)(V1) = (N2)(V2), where N is the normality and V is the volume. Adjust the concentration accordingly for accuracy.
How do you turn water into wine using phenolphthalein?
Phenolphthalein is a pH indicator and cannot be used to turn water into wine. Wine is made through the process of fermentation using grapes or other fruits, yeast, and time. Phenolphthalein changes color in response to a change in pH, typically from colorless to pink or red in the presence of a base.
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.
How many ml of 0.1200 M NaOH is needed to titrate 0.5100 g KHP (MW 204.22 gmol) to the phenolphthalein end point?
To begin, calculate the number of moles of KHP using its molar mass. Next, use the stoichiometry of the reaction to determine the moles of NaOH required for complete titration. Finally, use the concentration of NaOH to calculate the volume needed in milliliters using the formula: volume (mL) = moles needed / molarity.
Is solution x safe to drink with phenolphthalein?
what would happen if scientists were testing to see if a substance was safe to drink and used phenolphthalein as an indicator and what would happen if the test was done using methyl orange
Does sodium carbonate react with phenolphthalein indicator?
Sodium carbonate does react with phenolphthalein indicator, producing a color change from colorless to pink in alkaline solutions. Sodium carbonate is a common base that can be used to test for the presence of acidity or alkalinity in a solution using phenolphthalein.
How will Phenolphthalein help you test for unknown substances?
Phenolphthalein is a pH indicator that changes color in response to different pH levels. By using phenolphthalein, you can determine if a solution is acidic or basic based on the color change it exhibits. This can help you identify unknown substances by comparing the color change with known pH values of different substances.
When phenolphthalein is added to a basic solution what happens?
That really depends on the strength of the acid, the antacid, and how much of each are present in a mixture. Phenolphthalein is a pink in the presence of higher strength bases (pH > 8.2), orange in the presence of very strong acids (pH < 0), and colorless between pH 0 and 8.2, as well as above 12. If your acid and antacid is combined in a single mixture, the color will depend on the ratio of acid and antacid, taking into account the strength of both the acid and the antacid. If you have significantly more antacid than acid, chances are that it will be pink (unless you're using a strong base like sodium hydroxide for your antacid, at which point it will be colorless), while if you have more acid than antacid, it'll be colorless (unless your acid is a superacid such as fluoroantimonic acid, which there's no reason why you would be using it).
