one is specific
we use primary standard apparatus in chemistry lab to find accurate resultthe examples of primary standard apparatus arepippetteburreteVolumetric Flask
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.
HSC is Higher Secondary Certificate which is 12th standard.....10th standard is called as SSC that is Senior Secondary Certificate.
Olumawu basis education secondary school
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.
solution that changes it's strength with the passage of time.
To manipulate laboratory apparatus, be sure to read the instructions carefully, wear appropriate protective gear, and handle the apparatus with care. Follow standard operating procedures and use the equipment for its intended purpose to ensure accurate and reliable results. Practice proper maintenance and cleaning procedures to extend the lifespan of the apparatus and prevent cross-contamination.
primary standard solution is prepared by direct measurements of the mass of solute and the volume of solution.whereas, a secondary standard solution is a solution whose concentration can't be determined directly from weight of solute and volume of solution, the concentration must be determined by analysis of the solution itself.
all principal end items and secondary items
ANSWER:- There are nine types of solution:- (1). Gas of Gas. (2).Gas of Liquid. (3).Gas of Solid. (4).Liquid of Gas. (5).Liquid of Liquid. (6).Liquid of Solid. (7).Solid of Solid. (8).Solid of Liquid. (9).Solid of Gas.
EDTA (ethylenediaminetetraacetic acid) is not a secondary standard. It is a chelating agent commonly used as a titrant in complexometric titrations to determine metal ions in solution. The stability and selectivity of EDTA complexes make it a primary standard for this purpose.
EDTA is considered a secondary standard because its purity needs to be verified by titration with a primary standard solution to determine its exact concentration. This is due to the fact that EDTA is hygroscopic and its concentration can vary due to absorption of moisture from the atmosphere.