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Why is perchloric acid standardized using potassium hydrogen phthalate since both are acidic?
Perchloric acid is a strong acid, whereas potassium hydrogen phthalate (KHP) is a weak acid. Therefore, perchloric acid will protonate KHP to form phthalic acid. In other words, even though both are considered acids, KHP is more basic than perchloric acid (when you compare their pKa or Ka, the true measure of acid strength).
I'm not entirely sure what you mean by "standardized" however. Do you mean doing a titration? Often a solution of KHP is used to calibrate a pH meter because it's pH in solution is very stable. I would be surprised if a titration was done with perchloric acid and KHP however, but I'm not sure what else you could mean by asking why an acid is standardized using KHP.
KHP is the primary standard used for the standarization of perchloric acid, usually 0.1M HCLO4 in concentration. It is the recommended primary standard in the pharmaceutical industry for analytical testing using perchloric acid for non-aqueous titration determinations. The protonation of KHP to phthalic acid when reacted with perchloric acid can be determined stoichiometrically. Using a dried KHP standard of known purity allows the determination of HCLO4.
What else can I help you with?
What is the Lewis structure for Potassium Hydrogen Phthalate?
The Lewis structure for Potassium Hydrogen Phthalate (KC8H5O4) involves showing the bonding between the potassium (K) cation and the phthalate anion. Phthalate is a polyatomic ion with two benzene rings connected by a carbon chain and two carboxyl groups. The potassium ion forms an ionic bond with the phthalate anion, with potassium donating its electron to the anion to achieve stability.
Potassium hydrogen phthalate and sodium hydroxide equation?
The reaction between potassium hydrogen phthalate (KHP) and sodium hydroxide (NaOH) is a neutralization reaction. The balanced chemical equation for this reaction is: KHP + NaOH -> KNaP + H2O. In this reaction, the potassium hydrogen phthalate reacts with sodium hydroxide to form potassium sodium phthalate and water.
Is potassium hydrogen phthalate a metal?
No it is a compound, a salt to be specific.
How does one prepare a 0.1M standard solution of potassium hydrogen phthalate?
To prepare a 0.1M standard solution of potassium hydrogen phthalate, you would first weigh out the appropriate amount of potassium hydrogen phthalate (KHPh) based on its molar mass, which is 204.22 g/mol. Dissolve this amount in distilled water and make up the solution to the desired volume, typically in a 1 liter volumetric flask. Finally, mix the solution thoroughly to ensure complete dissolution.
What is the molarmass of KHP?
The molar mass of potassium hydrogen phthalate (KHP) is approximately 204.22 g/mol.
What is the structural formula for potassium hydrogen phthalate?
Potassium Hyrdogen Phthalate can be written as KHP.The balanced equation for Potassium hydrogen phthalate and calcium hydroxide is:2KHC8H4O41- (aq) + Ca(OH)2 (aq) -----> Ca2+ (aq) + 2KC8H4O41- (aq) + 2H2O
What is the Lewis structure for Potassium Hydrogen Phthalate?
The Lewis structure for Potassium Hydrogen Phthalate (KC8H5O4) involves showing the bonding between the potassium (K) cation and the phthalate anion. Phthalate is a polyatomic ion with two benzene rings connected by a carbon chain and two carboxyl groups. The potassium ion forms an ionic bond with the phthalate anion, with potassium donating its electron to the anion to achieve stability.
What is KHP and structure?
KHP stands for potassium hydrogen phthalate, which is a white crystalline solid often used as a primary standard for acid-base titrations. Its chemical structure consists of a phthalate group (C8H5O4) with a potassium ion (K+) and a hydrogen ion (H+) attached.
Potassium hydrogen phthalate and sodium hydroxide equation?
The reaction between potassium hydrogen phthalate (KHP) and sodium hydroxide (NaOH) is a neutralization reaction. The balanced chemical equation for this reaction is: KHP + NaOH -> KNaP + H2O. In this reaction, the potassium hydrogen phthalate reacts with sodium hydroxide to form potassium sodium phthalate and water.
Is potassium hydrogen phthalate a metal?
No it is a compound, a salt to be specific.
Is Potassium hydrogen phthalate di-basic?
No, it is monobasic acid because one of the two acidic hydrogen is already displaced by potassium ion.
What is the full form of KHP?
Potassium hydrogen phthalatepotassium cation (K+) and hydrogen phthalate anion (HP- or Hphthalate-)
How does one prepare a 0.1M standard solution of potassium hydrogen phthalate?
To prepare a 0.1M standard solution of potassium hydrogen phthalate, you would first weigh out the appropriate amount of potassium hydrogen phthalate (KHPh) based on its molar mass, which is 204.22 g/mol. Dissolve this amount in distilled water and make up the solution to the desired volume, typically in a 1 liter volumetric flask. Finally, mix the solution thoroughly to ensure complete dissolution.
What is the molarmass of KHP?
The molar mass of potassium hydrogen phthalate (KHP) is approximately 204.22 g/mol.
Is potassium hydrogen phtalate organic or inorganic?
Potassium hydrogen phthalate is considered an organic compound because it contains carbon atoms in its structure. Organic compounds are generally defined as compounds that contain carbon-hydrogen (C-H) bonds.
What is another name for aqueous hydrogen perchlorate?
Another name for aqueous hydrogen perchlorate is perchloric acid.
Conclusion of preparation of solution of HCl and NaOH to be standardized?
In the preparation of a solution of HCl and NaOH to be standardized, it is crucial to accurately measure the quantities of the reagents and ensure their purity. The solutions should be mixed thoroughly to ensure homogeneity, and the final solution can then be standardized using a primary standard such as potassium hydrogen phthalate (KHP) for acid or sodium carbonate for base. Conducting titrations afterward with the standardized solution will help determine the exact concentrations of the initial solutions.
