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How does one prepare a 0.1M standard solution of potassium hydrogen phthalate?
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Why is KHP used as a primary standard for non aqueous titration?
KHP (potassium hydrogen phthalate) is available extremely pure (which is always good for a primary standard) and gives a very sharp end-point especially with Crystal Violet Indicator
What is HC6H5O?
Several organic compounds have that formula. However, the way that it's written... with a lone hydrogen in front... strongly implies that the answer is probably phenol. Phenol is a benzene ring with an alcohol group attached to one of the carbons. The hydrogen in the alcohol is less strongly held than is typical of alcoholic hydrogens, so phenol is a weak acid (most alcohols are neutral) and even has the older name of "carbolic acid" to reflect this.
How to prepare a standard solution of potassium iodate?
it is primary standard........ but before making solution dry it at 120. C
Why standard solution should be colorless?
Water is one of the only clear solution made of hydrogen and oxygen
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.
Why is potassium hydrogen phthalate a good primary standard?
Because Adolf Hitler, according to record, whilst trying to make the atomic bomb, got his finger stuck in himmlers anus. as he removed it, liquid s**T came out in a "spray" form. This was very funny to the other Nazi babies. So Adolf got some potassium hydrogen phthalate and burned the C**ts. Then Adolf said to Himmler "f**k me that's a good primary standard batt!"
Why is KHP used as a primary standard for non aqueous titration?
KHP (potassium hydrogen phthalate) is available extremely pure (which is always good for a primary standard) and gives a very sharp end-point especially with Crystal Violet Indicator
What is HC6H5O?
Several organic compounds have that formula. However, the way that it's written... with a lone hydrogen in front... strongly implies that the answer is probably phenol. Phenol is a benzene ring with an alcohol group attached to one of the carbons. The hydrogen in the alcohol is less strongly held than is typical of alcoholic hydrogens, so phenol is a weak acid (most alcohols are neutral) and even has the older name of "carbolic acid" to reflect this.
How to prepare a standard solution of potassium iodate?
it is primary standard........ but before making solution dry it at 120. C
Does potassium a primary standard substance?
- dipotassium hydrogen phosphate is used to prepare buffers - for chemical analysis by spectrometry standard solutions of potassium exist
Why standard solution should be colorless?
Water is one of the only clear solution made of hydrogen and oxygen
How do you make standard Mn solution?
Dissolve a known amount of potassium permanganate in a known volume of demineralized water; calculate the concentration of manganese in the solution.
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.
Why KCl is used as standard in conductivity meter?
Potassium chloride is very stable and also fully dissociated in water solution.
What is difference between standard hydrogen electrode and normal hydrogen electrode?
E(SCE)-E(H)=241 mV @25°C SHE is a primary standard electrode bt SCE is secondary reference electrode use for more easier work than SHE & SCE,s potential also measured by taking SHE as reference electrode.
What is the group number in standard and roman numerals of potassium?
the group number in standard and roman numerals of potassium is as follows .the group number in standard of potassium is Group 1 .the group number roman numerals of potassium is Group I.
What is the solute and solvent of potassium nitrate solution?
The enthalpy of solution of potassium nitrate is +34.9kJ/mol.
