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What are the examples of primary standards?
Primary standards are highly pure substances used in quantitative analysis to establish the concentration of solutions. Examples include sodium chloride (NaCl) for ionic strength, potassium hydrogen phthalate (KHP) for acid-base titrations, and silver nitrate (AgNO3) for precipitation reactions. These substances are characterized by their stability, non-hygroscopic nature, and known stoichiometry, making them ideal for calibrating analytical methods.
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.
Marines take care of their own and a marines word is his bond are primary examples of marine corps?
Standards
Is sodium thiosulphate solution a primary standard?
No, sodium thiosulfate solution is not typically considered a primary standard. It is commonly used as a titrant in redox titrations rather than as a primary standard due to its susceptibility to oxidation by air. Primary standards are typically pure, stable compounds that can be used to standardize solutions.
Why aren't primary standards available for working standards?
because primary standars are not as accurate
What is the primary standard apparatus in chemistry?
we use primary standard apparatus in chemistry lab to find accurate resultthe examples of primary standard apparatus arepippetteburreteVolumetric Flask
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 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.
What are examples of primary memory?
examples of primary memory are RAM, ROM, PROM, EPROM , etc.....
What are journals and letters examples of?
primary sorces
What are primary standard substances?
These substances are very pure materials, having a serious quality certificate, prepared only by authorized laboratories, intended to be used as reference materials for chemical analysis, validation of analysis methods, checking of instruments, legal analysis etc.
Give two examples each of primary and secondary fuels?
Examples of primary fuels - wood, coal Examples of secondary fuels - charcoal, coke
