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A solid acid of high purity that can be accurately weighed and directly determined is called?
A primary Standard
What must be done to determine the concentration of a non standard solution?
Titrate it with a primary standard
What is the primary cause of diffusion?
The primary driving force of facilitated diffusion are surface cell proteins. These proteins transport substances in and out of the cell.
What is the minium purity of a substance used to prepare a primary standard?
The minimum purity of a substance used to prepare a primary standard should be at least 99.8% to ensure accuracy and reliability of the standard solution. Impurities in the substance can lead to errors in the final concentration calculations.
What is the primary purpose of the blood-brain barrier?
The primary purpose of the blood-brain barrier is to protect the brain from harmful substances in the bloodstream, such as toxins and pathogens. It regulates the passage of substances into the brain to maintain a stable environment for proper brain function.
What are the types of standard solutions?
The two main types of standard solutions are primary standard solutions, which are highly pure and stable substances that can be used to make precise titrations, and secondary standard solutions, which are solutions prepared using a primary standard solution as a reference for their concentration.
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.
A solid acid of high purity that can be accurately weighed and directly determined is called?
A primary Standard
What is primary standard substance?
A primary standard substance is referred to a reagent which is pure. This is a substance that can be weighed easily due to its purity.
What is the primary factor that determines which of these substances is most responsible for chemical reactions?
The primary factor that determines which substance is most responsible for chemical reactions is the reactivity of the substances involved.
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.
What is aprimary standard?
Primary standard can be defined in metrology, as a standard that is accurate enough that it is not calibrated by or subordinate to the other standards. Primary standards are used to calibrate other standards.
Is borax a primary standard?
No, borax is not considered a primary standard. Primary standards are highly pure reagents that can be used to standardize solutions for volumetric analysis, while borax is typically used as a secondary standard for acid-base 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 viscosity is used in the primary?
Either full synthetic or standard primary oil.
The primary substances of which all other things are composed are elements or molecules?
Elements are the primary substances that make up all matter, and they cannot be broken down into simpler substances. Molecules are combinations of two or more atoms bonded together, which can also be components of matter. Both elements and molecules play a crucial role in the composition of all things in the physical world.
advantage of KIO3 as a primary standard?
what is the advantage of potassium iodate as aprimary standard
