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How do you prepare a primary standard solution of 0.0500 M sodium carbonate?
Wiki User
∙ 11y ago
use the equation that is standard:
1000 ml 1 M solution= (MOLECULAR WEIGHT)
X ml 0.05 M solution = ((MOLECULAR WEIGHT)*X*0.05)/1000
Wiki User
∙ 11y ago
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Why anhydrous sodium carbonate is a primary standard?
na2co3 is primary standard,because,molarity remains same with time,and it is of high molecular weight
Is sodium thiosulphate solution a primary standard?
No. because it contains water of crystallization so it can absorb or release water..
Why is sodium thiosulphate not suitable for use as a primary standard?
Sodium hydroxide cannot be used as a primary standard because of its hygroscopic properties as a solid. Because it is so prone to absorbing water, it is impossible to accurately measure the mass of a solid sample, so instead it must be put into solution and titrated with a known acidic solution. This makes it a secondary standard as opposed to a primary standard. The same logic holds true for hydrated sodium carbonate. Any solution that MUST be titrated in order to know it true molarity is considered a secondary standard. It also reacts with atmospheric carbon dioxide to form sodium carbonate, so it is unstable.
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
What is difference between standard hydrogen electrode and normal hydrogen electrode?
E(SCE)-E(H)=241 mV @25°C SHE is a primary standard electrode bt SCE is secondary reference electrode use for more easier work than SHE & SCE,s potential also measured by taking SHE as reference electrode.
How to prepare a standard solution of potassium iodate?
it is primary standard........ but before making solution dry it at 120. C
What is the Frame structure of Serial Line Internet Protocol?
Preparation of standard solution and standardization of hydrochloric acid Objective : To prepare a standard solution of sodium carbonate and use it to standardize a given solution of dilute hydrochloric acid. Introduction : Anhydrous sodium carbonate is a suitable chemical for preparing a standard solution (as a primary standard). The molarity of the given hydrochloric acid can be found by titrating it against the standard sodium carbonate solution prepared. The equation for the complete neutralization of sodium carbonate with dilute hydrochloric acid is Na2CO3(aq) + 2HCl(aq) → 2NaCl(aq) + CO2(g) + H2O(l) The end-point is marked by using methyl orange as indicator. Chemicals :solid sodium carbonate, 0.1 M hydrochloric acid
Is it possible to prepare a standard NaOH solution by dissolving an accurate amount of NaOH pellets in a known volume of water?
you can't make a primay standard solution with NaOh.as NaOh is said to be a secondary standard you have to establish the normality using some primary standard acids.
What is a secondary solution?
A solution that has been titrated against a primary standard solution.
What is primary standard?
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).
Difference between primary standard solution and a secondary standard solution in acid-base titration?
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.
What is primary standard solution?
A primary standard is a reagent that is extremely pure, stable, has no waters of hydration, and has a high molecular weight.
What must be done to determine the concentration of a non standard solution?
Titrate it with a primary standard
What is the primary standard solution for checking normality of Hcl?
NaOH
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 are the types of standard solutions?
there are two types of standard solution 1 primary 2 secondary
Standardization of hcl solution with primary standard na2co3 solution?
solution containig (3.3)gm na2co3 .h2o in (15ml)
