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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.
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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 are the fatty substances found in certain foods and manufactured by the body?
The two primary ones are cholesterol and triglycerides.
Why are standard solutions used?
A solution is a homogenous mixture of two or more substances. while A solution whose concentration is known is called a standard solution.
What is a secondary solution?
A solution that has been titrated against a primary standard solution.
The primary substances of which all other things are composed are elements or molecules?
The primary substances of which all other things are composed are known as elements.
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 hcl praimary standard or secondary standard?
HCl is not used as a primary standard
What is the primary standard used in this experiment .define a primary standard?
It is primary standard is a substance that has a known high digree of purity ,reatively large molar mass ,is nonhygroscopic and reacts in a predic table way.
Why iodine is not directly employed as the primary standard?
In order for a substance to be a primary standard it must be able to dissolve in water. Since iodine is unable to do this it cannot be used as a primary standard
Is hcl a primary standard or a secoundary standard?
HCl is a gas which is dissolved in water to form the solution the concentration expressed is very approximate so its not 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 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.
When refrring to class of substances that have primary secondary and tertiary structures?
Proteins?
What viscosity is used in the primary?
Either full synthetic or standard primary oil.
advantage of KIO3 as a primary standard?
what is the advantage of potassium iodate as aprimary standard
What is the definition of element in short terms?
substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter.
