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What can do NaOH use as primary standard?
Sodium hydroxide easily absorb water and carbon dioxide.
Is hcl a primary standard or a secoundary standard?
HCl is not typically used as a primary standard because it is difficult to obtain in a pure solid form. Instead, it is usually standardized against a primary standard such as potassium hydrogen phthalate (KHP) or sodium carbonate.
Is k2cro4 a primary or secondary standard and why?
K2CrO4 is a secondary standard. This is because it is not directly titrated against a primary standard but rather is standardized by titration against a primary standard, such as sodium thiosulfate in iodometric titrations.
What primary standard is used to titrate against hydrochloric acid?
Sodium carbonate (Na2CO3) is a common primary standard used to titrate against hydrochloric acid due to its high purity, stable nature, and the ability to accurately determine the concentration of the acid based on the stoichiometry of the reaction.
Why is potassium permanganate not used as a primary standard?
Potassium permanganate is not used as a primary standard because it is hygroscopic, meaning it readily absorbs water from the atmosphere, leading to inaccuracies in measurements. Additionally, its high reactivity with organic compounds can cause side reactions, affecting the accuracy of the titration results. Finally, potassium permanganate has multiple oxidation states, making it difficult to determine its exact concentration in a solution, further limiting its suitability as a primary standard.
Which other primary standard can be used to standardize sodium hydroxide other than KHP?
sodium hydroxide is a secondary standard because it absorb the moisture from the air and its concentration will change
What can do NaOH use as primary standard?
Sodium hydroxide easily absorb water and carbon dioxide.
advantage of KIO3 as a primary standard?
what is the advantage of potassium iodate as aprimary standard
Is hcl a primary standard or a secoundary standard?
HCl is not typically used as a primary standard because it is difficult to obtain in a pure solid form. Instead, it is usually standardized against a primary standard such as potassium hydrogen phthalate (KHP) or sodium carbonate.
Does potassium a primary standard substance?
- dipotassium hydrogen phosphate is used to prepare buffers - for chemical analysis by spectrometry standard solutions of potassium exist
Is k2cro4 a primary or secondary standard and why?
K2CrO4 is a secondary standard. This is because it is not directly titrated against a primary standard but rather is standardized by titration against a primary standard, such as sodium thiosulfate in iodometric titrations.
Why iodine is not directly employed as the primary standard?
Iodine is not directly employed as a primary standard because it is less stable in solution compared to other primary standards like potassium dichromate or potassium permanganate. Additionally, iodine is sensitive to light and air, leading to potential degradation and affecting its accuracy as a primary standard.
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 primary standard is used to titrate against hydrochloric acid?
Sodium carbonate (Na2CO3) is a common primary standard used to titrate against hydrochloric acid due to its high purity, stable nature, and the ability to accurately determine the concentration of the acid based on the stoichiometry of the reaction.
Why is potassium permanganate not used as a primary standard?
Potassium permanganate is not used as a primary standard because it is hygroscopic, meaning it readily absorbs water from the atmosphere, leading to inaccuracies in measurements. Additionally, its high reactivity with organic compounds can cause side reactions, affecting the accuracy of the titration results. Finally, potassium permanganate has multiple oxidation states, making it difficult to determine its exact concentration in a solution, further limiting its suitability as a primary standard.
What particle is present in most alkalis?
Most alkalis contain hydroxide ions (OH⁻) as their primary particle. These ions are responsible for the basic properties of alkalis, which typically include substances like sodium hydroxide (NaOH) and potassium hydroxide (KOH). The presence of hydroxide ions allows alkalis to neutralize acids and conduct electricity in solution.
Does soap have magnesium hydroxide?
Soap typically does not contain magnesium hydroxide as a primary ingredient. Instead, soap is primarily made from fats or oils combined with an alkali, such as sodium hydroxide or potassium hydroxide. However, some specialty soaps may include magnesium hydroxide as an additive for specific benefits, like skin soothing properties. Always check the ingredient list for exact formulations.
