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starch in the food sample. Iodine solution reacts with starch to produce a dark blue or black color, indicating the presence of starch in the test sample.

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What is the purpose of adding an indicator to an unknown solution?

Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution


How can you identify Sulphate anions in a unknown solution?

Dip a copper coin in that unknown solution And make that solution slightly acidic. After about one hour, take out the copper coin and if there are green colours deposits then there is sulphate, otherwise not.


What is the function of the phenanthroline solution that is added to the unknown iron solution?

Phenanthroline solution is added to unknown iron solution to form a red-colored complex with iron ions. This complex is then used for colorimetric analysis to determine the concentration of iron present in the solution.


What is the product of every titration?

The product of a titration is the determination of the unknown concentration of a substance (analyte) in a solution by reacting it with a solution of known concentration (titrant) until an endpoint is reached. This helps in quantifying the amount of the analyte present in the sample solution.


What is a solution of known concentration used in the process of titration?

A standard solution is a solution of known concentration used in titration to determine the concentration of an unknown solution. It is usually added to the unknown solution until a desired reaction is completed, allowing the concentration of the unknown solution to be calculated based on the volume of standard solution used.

Related Questions

What is the purpose of adding an indicator to an unknown solution?

Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution


How can you identify Sulphate anions in a unknown solution?

Dip a copper coin in that unknown solution And make that solution slightly acidic. After about one hour, take out the copper coin and if there are green colours deposits then there is sulphate, otherwise not.


What is the function of the phenanthroline solution that is added to the unknown iron solution?

Phenanthroline solution is added to unknown iron solution to form a red-colored complex with iron ions. This complex is then used for colorimetric analysis to determine the concentration of iron present in the solution.


Is sodium hydroxide unknown solution?

Sodium hydroxide is not an unknown solution.


How can I find out whether a unknown mixture has protein in it?

The most common method is the biuret test: in the presence of a copper(II) solution and NaOH the sample become violet.


What is the product of every titration?

The product of a titration is the determination of the unknown concentration of a substance (analyte) in a solution by reacting it with a solution of known concentration (titrant) until an endpoint is reached. This helps in quantifying the amount of the analyte present in the sample solution.


Which describes mendeleevs use of the term ekaaluminum?

A mixture of aluminum and an unknown element.


What is a solution of known concentration used in the process of titration?

A standard solution is a solution of known concentration used in titration to determine the concentration of an unknown solution. It is usually added to the unknown solution until a desired reaction is completed, allowing the concentration of the unknown solution to be calculated based on the volume of standard solution used.


How does one test for an acetate ion in an unknown solution?

One common method to test for acetate ion (CH₃COO⁻) is to add a few drops of dilute hydrochloric acid (HCl) to the unknown solution. Then, introduce a few drops of ferric chloride (FeCl₃) solution. If a red precipitate forms, it indicates the presence of acetate ion.


When biuret reagent is added to an unknown colorless solution the solution turns light purple. this indicates the presence of which molecules?

process that release energy by breaking down food molecules in the presence of oxygen


Is iron sulphide a compound or a mixture?

unknown


What is concluded from titration?

From a titration, the concentration of an unknown solution can be determined by measuring the volume of a known titrant that reacts with it. The equivalence point indicates the point at which the reaction is complete, and the endpoint is the point at which an indicator changes color. This information can be used to calculate the concentration of the unknown solution.