How do you find the concentration of NaOH with KHP titration?
The number of moles of NaOH is found by multiplying the moles of KHP by the mole ratio of NaOH to KHP given by the above, balanced chemical reaction. 3. The molarity of the NaOH solution is found by dividing the moles of NaOH by the liters of NaOH solution required to reach the endpoint of the titration.
What is the percentage of KHP KHP in the mixture?
The KHP is 96.1 % pure.
What is KHP titration?
A commonly used primary standard for titration with sodium hydroxide solution is the weak acid potassium hydrogen phthalate or KHP (C8H5O4K). The reaction between KHP and NaOH is given below: C8H5O4K + NaOH → C8H4O4KNa + H2O. In this reaction as well, one mole of KHP completely reacts with one mole of NaOH.
What is the reaction between KHP and KOH?
The balanced reaction equation between the weak acid potassium hydrogen phthalate or KHP (C8H5O4K) and potassium hydroxide is as follows: KOH + C8H5O4K → C8H4O4K2 + H2O.
How is KHP used during a titration to determine the concentration of a basic solution like NaOH aq )?
The titration of NaOH with KHP involves adding NaOH from the burette to a known volume of KHP. The molarity of the KHP solution is determined from the mass and volume of KHP used to prepare the KHP solution. The data from the titration is then used to calculate the molarity of the NaOH.
Why is phenolphthalein a useful indicator for titrating KHP and NaOH?
I always used to like phenolphthalein inasmuch as its acidic form is COLOURLESS, and its endpoint is very recognizable from either direction. Phenolphthalein is usually used since it is easy to detect visually a slight pink color from a colorless liquid solution.
Why do you use KHP to standardize a solution of NaOH?
NaOH is hygroscopic, so it is not possible to weigh it accurately. KHP is hygroscopic, so it is not possible to weigh it accurately. NaOH is a primary standard, so a solution of it needs to be standardized. NaOH is hygroscopic, so it is not possible to weigh it accurately.
What is titration example?
Example: The titration of acetic acid (HC2H3O2) with NaOH. During this titration, as the OH– reacts with the H+ from acetic acid, the acetate ion (C2H3O2–) is formed. This conjugate base reacts with water to form a slightly basic solution.