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Titrations

Titrations are used to measure the concentration of an unknown solution using a known solution while tallying the volumes. Several types of these include acid-base titrations, red-ox titrations, colorimetric titrations and gravimetric titrations.

959 Questions

Why double indicator is used during the titration of water to find alkalinity of water sample?

Double indicator (phenolphthalein and methyl orange) is used during the titration of water to find the alkalinity of the water sample because each indicator changes color at different pH ranges. Phenolphthalein changes color in the alkaline pH range, indicating the endpoint of the titration for total alkalinity. Methyl orange changes color in the acidic pH range, aiding in the detection of the endpoint for carbonate alkalinity. Using both indicators helps to accurately determine the different forms of alkalinity present in the water sample.

Why reaction mixture added into ice cold water before titration in experiment of kinetics of ester hydrolysis?

Adding the reaction mixture into ice-cold water helps to quench the reaction and halt any further ester hydrolysis. This is important to obtain an accurate measurement during titration, as it ensures that the reaction has stopped and the initial conditions are preserved for analysis. Rapid cooling also helps to minimize the impact of any side reactions that may occur due to heat generated during the process.

How get the accutare titration value?

Titration value describes how accurately a substance is dissolved in another substance. In order to find this number, you need a pipette, a burette, and a volumetric flask.

Is there any difference between conical flask and titration lask?

Yes, there is a difference between a conical flask and a titration flask. A conical flask is a general-purpose laboratory glassware used for mixing and heating liquids, while a titration flask, also known as a burette, is a specific type of flask used in a titration to measure the volume of a substance being added to a solution. Titration flasks are usually marked with volume measurements to accurately determine the amount of substance added in a titration.

Why use disodium tartrate for kf calibration?

Disodium tartrate is used for Karl Fischer titration calibration because it is a primary standard with a known water content, which allows for accurate determination of the water content in the titration system. It provides a reliable reference point for calibrating the Karl Fischer titration method and ensuring accurate results.

Why aceticacid use to rubber coagulation?

Acetic acid is used in the process of rubber coagulation because it helps to neutralize ammonia that is commonly used to prevent the coagulation of rubber latex. By neutralizing the ammonia, acetic acid aids in the destabilization of the rubber particles, causing them to clump together and separate from the liquid, resulting in the coagulation of the rubber.

What type of reaction would a titration be useful for?

A titration would be useful for determining the concentration of an unknown solution by reacting it with a known concentration of another solution. This process is commonly used in acid-base reactions, where the point of neutralization is reached to determine the concentration of the unknown solution.

How do you do the titration of aluminium alloy?

To perform a titration of an aluminum alloy, you can use a suitable titrant like sodium hydroxide (NaOH) to titrate the solution containing the alloy. The endpoint of the titration can be determined using a pH indicator or potentiometric method, where the equivalence point corresponds to the complete reaction of aluminum in the alloy with the titrant. By measuring the volume of titrant consumed at the endpoint, you can calculate the concentration of aluminum in the alloy.

Can we carry out an iodometric titration using a potentiometer?

No, iodometric titration is typically done using a standard titration setup with a burette and indicator to detect the endpoint. A potentiometer measures the voltage produced in a system, making it unsuitable for this type of titration.

What are the four classes of titration?

The four classes of titration are acid-base titrations, redox titrations, complexometric titrations, and precipitation titrations. These classes are based on the type of reaction that occurs during the titration process and the corresponding indicators used to determine the endpoint.

Why is it necessary to establish a blank titration before the reaction?

Establishing a blank titration allows you to account for any impurities or contaminants in the titration procedure or equipment, which could affect the accuracy of your results. By performing a blank titration, you can isolate the contribution of these factors and subtract them from your subsequent titration measurements to ensure the accuracy of your results.

Which jobs would involve carrying out a titration?

Chemists, laboratory technicians, and researchers would typically be involved in carrying out titrations as part of their job responsibilities. This analytical technique is commonly used in various fields such as pharmaceuticals, environmental science, and food industry for determining the concentration of a specific substance in a solution.

Why must EDTA titrations be carried out in pH buffered solutions illustration with reactions?

EDTA titrations should be carried out in pH buffered solutions to maintain a constant pH during the titration process. This is crucial because the effectiveness of EDTA as a chelating agent depends on the pH of the solution. In acidic conditions, EDTA binds to metal ions that are more soluble, while in alkaline conditions, it binds to less soluble metal ions. Buffer solutions help keep the pH constant so that the EDTA can accurately complex with the metal ions present.

Why non-aqueous titration required?

Non-aqueous titration is required when the substances being titrated are insoluble or unstable in water or when the reaction involves non-aqueous solvents. This method is commonly used in organic chemistry to determine the concentration of acidic or basic substances in non-aqueous solvents like alcohols or acetone. Non-aqueous titration allows for accurate and precise determination of concentrations in these specific scenarios.

How is titration used in cosmetic industries?

Titration is used in cosmetic industries to determine the pH levels of skincare products, such as creams and lotions. This helps ensure that the products are safe and effective for use on the skin. Titration can also be used to measure the concentration of active ingredients in cosmetics to ensure consistency and quality in production.

Which indicator is used in titration of oxalic acid with HCl?

Both HCl and oxalic acid are acids. Therefore, since there is no alkali present, these compounds do not undergo neutralization. So there is no suitable indicators for the addition of these two reagents.

What are the components of titration?

The components of a titration setup typically include a burette for delivering the titrant, a pipette for measuring the sample, a flask or beaker for containing the sample, a stirring device, an indicator to show the endpoint, and a standardized solution of known concentration.

Why does it not matter if conical flask you wet with water during titration?

Wetting the conical flask with water during titration helps to ensure thorough mixing and prevents solution splashing or clumping on the sides of the flask. This can help in obtaining accurate and consistent titration results.

Which is the end point in acid base titration?

The end point in an acid-base titration is the point at which an indicator changes color and signifies that equivalence has been reached between the acid and base being titrated. This is when the amount of acid and base are in stoichiometric proportions.

Why back titration is used in complexometric titration?

Back titration is used in complexometric titration when the analyte reacts slowly with the titrant or when a direct titration is not feasible due to interference from other substances. By adding an excess of a known reagent to react with the analyte, followed by titration with another reagent to determine the excess, the concentration of the analyte can be accurately calculated.

What type of titration Karl fischer is?

Karl Fischer titration is a type of volumetric analysis commonly used to determine the water content in a sample. It is based on the reaction of iodine with water in the presence of sulfur dioxide and an organic base such as pyridine.

Why HCL is not use to acidify KMnO4 soln in permanganometric titration?

HCl cannot be used to acidify KMnO4 solution in permanganometric titration because it will react with KMnO4 reducing it to MnO2, which interferes with the titration process and affects the accuracy of the results. Instead, dilute sulfuric acid (H2SO4) is typically used to acidify the KMnO4 solution, as it does not interfere with the redox reaction between KMnO4 and the analyte.

What are the limitations of the edta titration?

Some limitations of EDTA titration include potential masking effects from interfering ions, the need for a pH buffer to maintain a stable pH, and the complexity of calculating results due to multiple metal ions present in a sample. Additionally, EDTA titration may not be suitable for analyzing metal ions at very low concentrations or in samples with high turbidity.