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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

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12y ago
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4mo ago

To prepare a 0.0500 M sodium carbonate solution, you would need to accurately weigh out the required amount of anhydrous sodium carbonate (Na2CO3), dissolve it in a known volume of water, and then dilute to the appropriate final volume while ensuring thorough mixing to achieve homogeneity. Make sure to use appropriate glassware and techniques to maintain accuracy.

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Q: How do you prepare a primary standard solution of 0.0500 M sodium carbonate?
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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 anhydrous sodium carbonate is a primary standard?

Anhydrous sodium carbonate is a primary standard because it is stable, easily obtained in a pure form, and can be weighed accurately. It does not contain any water molecules, making it easier to measure and calculate the exact amount required for a reaction. It can be used to standardize solutions in titrations by reacting stoichiometrically with an acid.


Why iodine is not directly employed as the primary standard?

Iodine is not directly employed as a primary standard because it is less stable in solution compared to other primary standards like potassium dichromate or potassium permanganate. Additionally, iodine is sensitive to light and air, leading to potential degradation and affecting its accuracy as a primary standard.


State the name of chemical present in limestone?

The primary chemical present in limestone is calcium carbonate (CaCO3).


Why is sodium thiosulphate not suitable for use as a primary standard?

Sodium thiosulfate is not suitable as a primary standard because it is hygroscopic, meaning it readily absorbs water from the surroundings, leading to inaccurate measurements of its mass. Additionally, it may undergo oxidation in air, affecting its purity. These properties make it unsuitable for precise volumetric analysis.

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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


What is the minium purity of a substance used to prepare a primary standard?

The minimum purity of a substance used to prepare a primary standard should be at least 99.8% to ensure accuracy and reliability of the standard solution. Impurities in the substance can lead to errors in the final concentration calculations.


How to prepare a standard solution of potassium iodate?

To prepare a standard solution of potassium iodate, you would need to weigh out a known quantity of potassium iodate, dissolve it in a known volume of water, and make up the solution to a specific volume using a volumetric flask. This process allows you to accurately determine the concentration of the solution.


Is hcl a primary standard or a secoundary standard?

HCl is not typically used as a primary standard because it is difficult to obtain in a pure solid form. Instead, it is usually standardized against a primary standard such as potassium hydrogen phthalate (KHP) or sodium carbonate.


Difference between primary standard solution and a secondary standard solution in acid-base titration?

A primary standard solution is a highly pure compound that can be used to standardize acids or bases in titrations, as it has a known concentration. A secondary standard solution, on the other hand, is a solution with a concentration determined by titration against a primary standard solution.


Standardization of hcl solution with primary standard na2co3 solution?

To standardize an HCl solution with a primary standard Na2CO3 solution, first, prepare a Na2CO3 solution of known concentration. Then, titrate the Na2CO3 solution with the HCl solution using a suitable indicator until the equivalence point is reached. From the volume of HCl solution used and the known concentration of Na2CO3, you can calculate the exact concentration of the HCl solution.


Is it possible to prepare a standard NaOH solution by dissolving an accurate amount of NaOH pellets in a known volume of water?

Yes, it is possible to prepare a standard NaOH solution by dissolving an accurate amount of NaOH pellets in a known volume of water. This process allows for the calculation of the concentration of the NaOH solution based on the amount of NaOH used and the volume of water.


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).


What is Secondary standard solution in volumetric analysis with example?

Primary standard is a chemical entity available with highest purity and stability with high molecular weight. e.g. KHP, NaCl, Calcium salt used in standardisation of volumetric solution. Secondary standards are compounds used in analysis after evaluation against primary standards. e.g.- NaOH VS, Sodium thiosulphate VS


What is the primary standard used in this experiment .define a primary standard?

The primary standard used in an experiment is typically a highly pure compound that can be used to determine the concentration of another substance through titration or other analytical methods. A primary standard is defined as a substance of known purity that can be accurately weighed out to prepare a solution with a precisely known concentration.


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