na2co3 is primary standard,because,molarity remains same with time,and it is of high molecular weight
solution containig (3.3)gm na2co3 .h2o in (15ml)
A primary standard solution is generally a solution prepared and certified by an authorized and specialized institution (for example: NIST - National Institute for Standards and Technology).
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.
This is the most exact and sure, certified standard for concentration in analytical chemistry.
It is because it absorbs moisture from air and therefore doesn't meet the criteria for a primary standard.
solution containig (3.3)gm na2co3 .h2o in (15ml)
Yes, sodium Chloride solution is used as a primary standard.
A solution that has been titrated against a primary standard solution.
A primary standard solution is generally a solution prepared and certified by an authorized and specialized institution (for example: NIST - National Institute for Standards and Technology).
A primary standard solution is generally a solution prepared and certified by an authorized and specialized institution (for example: NIST - National Institute for Standards and Technology).
A primary standard solution is generally a solution prepared and certified by an authorized and specialized institution (for example: NIST - National Institute for Standards and Technology).
it is primary standard........ but before making solution dry it at 120. C
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.
It is a basic (alkaline) solution.
Titrate it with a primary standard
NaOH
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.