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Borax is considered a primary standard because it is a solid compound with a high degree of purity, a high molecular weight, and stable chemical properties. These characteristics make it suitable for accurately measuring the concentration of acids or bases in a titration procedure.
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Is borax a primary standard?
No, borax is not considered a primary standard. Primary standards are highly pure reagents that can be used to standardize solutions for volumetric analysis, while borax is typically used as a secondary standard for acid-base titrations.
Why borax is a good primary standard?
Borax is a good primary standard because it is a hydrated salt with a known chemical formula and molecular weight that can be easily determined. It can be dried to a constant weight and is stable in air, making it reliable for accurate titrations. Additionally, borax is readily available, affordable, and dissolves easily in water.
What are the three reasons why borax is a good primary standard?
High purity: Borax is readily available in high purity form, which makes it suitable as a primary standard for accurate titrations. Stability: Borax is stable in air and does not readily absorb moisture, ensuring consistency in its weight and concentration. Clear endpoint: Borax reacts readily with acids, producing a clear color change that signals the endpoint of the titration accurately.
Why would NaOH not be used as a primary standard in the standardization of HCl with Borax?
Sodium hydoxide 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 tirated with a known acidic solution, such as HCl. This makes it a secondary standard as opposed to a primary standard. By. Kuatsienu Divine
Is disodium salt considered as a primary standard?
No, disodium salt is not typically considered a primary standard in analytical chemistry. Primary standards are highly pure compounds that can be used to accurately determine the concentration of a known substance in a solution. Disodium salt is more commonly used as a secondary standard or as a reagent in laboratory experiments.
Is borax a primary standard?
No, borax is not considered a primary standard. Primary standards are highly pure reagents that can be used to standardize solutions for volumetric analysis, while borax is typically used as a secondary standard for acid-base titrations.
Why borax is a good primary standard?
Borax is a good primary standard because it is a hydrated salt with a known chemical formula and molecular weight that can be easily determined. It can be dried to a constant weight and is stable in air, making it reliable for accurate titrations. Additionally, borax is readily available, affordable, and dissolves easily in water.
What are the three reasons why borax is a good primary standard?
High purity: Borax is readily available in high purity form, which makes it suitable as a primary standard for accurate titrations. Stability: Borax is stable in air and does not readily absorb moisture, ensuring consistency in its weight and concentration. Clear endpoint: Borax reacts readily with acids, producing a clear color change that signals the endpoint of the titration accurately.
Why is borax a good standard?
The best standard is borax from NIST- code 187e.
What are three reasons why borax is a good primary standard?
Borax has a high purity level, making it suitable for accurate and reproducible calibration. It has a stable chemical composition, which ensures consistent results over time. Borax is easily accessible, cost-effective, and not as sensitive to air and moisture as some other primary standards.
What is the theory of standardization of hydrochloric acid with Borax?
Borax can be used as a primary standard because it does not decompose in normal storage conditions. The salt will dissociate in water and the anion will be hydrolyzed. This leaves hydroxide ions to be titrated with the hydrochloric acid.
Why would NaOH not be used as a primary standard in the standardization of HCl with Borax?
Sodium hydoxide 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 tirated with a known acidic solution, such as HCl. This makes it a secondary standard as opposed to a primary standard. By. Kuatsienu Divine
Is disodium salt considered as a primary standard?
No, disodium salt is not typically considered a primary standard in analytical chemistry. Primary standards are highly pure compounds that can be used to accurately determine the concentration of a known substance in a solution. Disodium salt is more commonly used as a secondary standard or as a reagent in laboratory experiments.
Why iodine is not considered as a primary standard?
Iodine is not considered a primary standard because it can undergo sublimation (solid to gas phase transition) and has a limited solubility in water, which can lead to inaccuracies in volumetric analyses. Additionally, iodine can react slowly over time with air and other compounds, affecting its stability and reliability as a primary standard.
When calculating the mass of borax needed to make up a standard solutiondo you ionclude 10h2o?
No, when calculating the mass of borax needed to make a standard solution, you do not include the water of hydration (such as the 10H2O). You only consider the anhydrous borax (without water molecules) in your calculations.
Is hcl praimary standard or secondary standard?
Hydrochloric acid (HCl) is considered a primary standard because it is a highly pure compound that can be used directly to prepare standard solutions for titrations and other analytical procedures without the need for standardization.
Do borax fizz?
No, borax does not fizz. Borax is a naturally occurring mineral that dissolves in water. When mixed with an acid, it can create a slight bubbling reaction, but it is not considered to fizz in the same way as a carbonate compound.
