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Why was HCL added for the titration f Vitamin C?
Hydrochloric acid (HCl) is added to the titration of vitamin C to acidify the solution and provide a suitable acidic medium for the reaction between vitamin C and iodine to occur. The acid helps in the oxidation of ascorbic acid (vitamin C) by iodine, which is essential for determining the vitamin C content accurately through titration.
Does iodine react in hydrochloric acid solution?
Iodine will will not react with hydroelectric acid
What is the color of the indicator when an excess of hydrochloric acid has been added?
The indicator turns pink when an excess of hydrochloric acid has been added in a titration.
Why is bromocresol green a suitable indicator in the titration of hydrochloric acid with sodium tetraborate?
Bromocresol green changes color in the pH range of 3.8 to 5.4, which is close to the pH at the endpoint of the titration of hydrochloric acid with sodium tetraborate. This makes it a suitable indicator for this titration as it changes color around the equivalence point.
Why sulphuric acid is added in iodometric titration?
Sulfuric acid is added in iodometric titration to create an acidic environment, which increases the solubility of the iodine formed during the reaction. This ensures a more accurate and reliable titration by preventing the precipitation of iodine. Additionally, sulfuric acid helps to oxidize any interfering substances present in the sample, ensuring that only iodide ions are titrated.
Why was HCL added for the titration f Vitamin C?
Hydrochloric acid (HCl) is added to the titration of vitamin C to acidify the solution and provide a suitable acidic medium for the reaction between vitamin C and iodine to occur. The acid helps in the oxidation of ascorbic acid (vitamin C) by iodine, which is essential for determining the vitamin C content accurately through titration.
Does iodine react in hydrochloric acid solution?
Iodine will will not react with hydroelectric acid
What is the color of the indicator when an excess of hydrochloric acid has been added?
The indicator turns pink when an excess of hydrochloric acid has been added in a titration.
Why is bromocresol green a suitable indicator in the titration of hydrochloric acid with sodium tetraborate?
Bromocresol green changes color in the pH range of 3.8 to 5.4, which is close to the pH at the endpoint of the titration of hydrochloric acid with sodium tetraborate. This makes it a suitable indicator for this titration as it changes color around the equivalence point.
Why sulphuric acid is added in iodometric titration?
Sulfuric acid is added in iodometric titration to create an acidic environment, which increases the solubility of the iodine formed during the reaction. This ensures a more accurate and reliable titration by preventing the precipitation of iodine. Additionally, sulfuric acid helps to oxidize any interfering substances present in the sample, ensuring that only iodide ions are titrated.
How do you determine the concentration of concentrated hydrochloric acid?
Method: titration with a standardized solution of sodium (or potassium) hydroxide.
What problem will happen if you use hydrochloric acid instead of sulphuric acid in titration?
Using hydrochloric acid instead of sulfuric acid in a titration may result in inaccurate results because the equivalence point may be difficult to identify due to the similar dissociation behavior of the two acids. Additionally, hydrochloric acid can partially evaporate during the titration process, leading to a loss of accuracy in determining the concentration of the solution being analyzed.
Determination the concentration of concentrated hydrochloric acid?
To determine the concentration of concentrated hydrochloric acid, you can perform a titration with a standardized solution of a base, such as sodium hydroxide. By carefully adding the base to the acid solution and monitoring the pH change using a pH indicator or a pH meter, you can identify the equivalence point and calculate the concentration of the acid using the volume and molarity of the base solution used in the titration.
What experiment can you do to find out how much calcium carbonate there is in limestone?
To determine the amount of calcium carbonate in limestone, you can perform a titration using hydrochloric acid. By reacting a known mass of limestone with hydrochloric acid, you can measure the volume of acid required to neutralize the calcium carbonate. This information can then be used to calculate the amount of calcium carbonate present in the limestone sample.
What is the equation for neutralization of hydrochloric acid and phenolphthalein?
The neutralization of hydrochloric acid with phenolphthalein does not involve an equation. Phenolphthalein is a pH indicator that changes color at a certain pH range (8.2-10), making it useful for determining the endpoint of a titration involving an acid-base reaction like the neutralization of hydrochloric acid with a base.
What items contain hydrochloric acid?
Hydrochloric acid is commonly found in cleaning products such as toilet bowl cleaners and household descalers. It is also used in laboratory settings for pH analysis and titration, and in industrial applications for metal cleaning and processing. Additionally, hydrochloric acid is a component of gastric acid in the human stomach.
What is the equation of iodine between water and chloroform?
The equation for the reaction of iodine between water and chloroform is: I2 (iodine) + 2CHCl3 (chloroform) ⇌ ICl (iodine monochloride) + 2HCl (hydrochloric acid) + CHCl3 (chloroform).
