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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 indicator is being used in titration?

An indicator is so you can see when the end point of the reaction occurs, or when the reaction is complete. This can be an acid-base indicator such as methyl orange which determines the end point with a colour change.

What sources of errors are there in a titration experiment?

Some sources of errors in a titration experiment include human error in reading volume measurements, improper calibration of equipment leading to inaccurate readings, presence of impurities in chemicals affecting the reaction, and incorrect calculation of titrant concentration. It is important to carefully control these factors to minimize errors and ensure accurate results in titration experiments.

What is the need for phage titration?

Phage titration is needed to determine the concentration or titer of phages in a sample, which is crucial for ensuring the effectiveness of phage-based therapies, determining the optimal phage concentration for experiments, and monitoring phage growth dynamics in culture. Titration allows researchers to quantify the number of active phages present in a sample, providing valuable information for various applications in phage research and biotechnology.

What is the role of blank in formol titration?

In formol titration, blank serves as a control to account for any background color or turbidity in the sample that could interfere with the endpoint detection. By subtracting the blank value from the sample titration values, a more accurate measurement of the analyte concentration can be obtained.

Why is it acceptable to add water to the titration flask?

Once you have measured out your sample and transferred it to your flask, the absolute amount (moles) of sample is fixed. Adding water to the flask will change the concentration in the flask, titrating also adds volume to the flask as well as reacting with the sample. However, the number of molecules of sample you put into the flask will not change by simply diluting it with water.

How are titrations carried out in industries and how are they different to titrations in schools and colleges?

The process, operation, or method of determining the concentration of a substance in solution by adding to it a standard reagent of known concentration in carefully measured amounts until a reaction of definite and known proportion is completed, as shown by a color change or by electrical measurement, and then calculating the unknown concentration.

Disadvantage and advantages of titration?

ADVANTAGES AND DISADVANTAGES OF PRECIPITAION:

Look at the definitions I gave and figure it out! But I will help u start:

Advantages:

(1) Simple to do

(2) Cost effective

(3) Doesnot need great expertise but some skill and practice.

(4) Instruments are easily available

(5) Common used method and one of the oldest

Disadvantages:

(1) Needs skill and practise for effecive results

(2) Instruments have to be properly calibrated since it will give affected the final result.

(3) Reactivity of the elements to be titrated should be well researched since this may affect the end point.

(4) Time consuming if done manually

good luck

Why is potassium permanganate used for most titrations?

Potassium permanganate is commonly used as a titrant due to its strong oxidative properties, allowing it to easily oxidize most organic and inorganic compounds. Its deep purple color also serves as a visible indicator to signal the endpoint of the titration. Additionally, it can be used in both acidic and basic environments, making it versatile for a wide range of titration reactions.

The aim of precipitation titration?

The aim of precipitation titration is to determine the concentration of a substance in a solution by forming a solid precipitate. This method involves adding a titrant solution until the precipitate forms, indicating the endpoint of the reaction. The amount of titrant required to reach this endpoint is used to calculate the concentration of the analyte in the original solution.

What is the aim of precipitation titration?

The aim of precipitation titration is to determine the concentration of a substance by adding a titrant solution that causes a precipitate to form. The endpoint of the titration is reached when the precipitate begins to form, indicating that all the analyte has reacted.

What companies use titration in there work?

Answer Any company who has waste water usually titrates it before allowing it to go to the sewer system. Chemical company's titrate their chemicals and Paint companies titreate certain paints to see how much lead there is in the paint. These are three uses of titration.

How are preparations of standard solutions and titrations carried out in industry?

In industry, standard solutions are typically prepared by accurately weighing or measuring a known quantity of a substance and dissolving it in a known volume of solvent. Titrations are carried out by slowly adding the standard solution to the solution being analyzed until the reaction reaches its endpoint, which is indicated by a change in color or conductivity. The volume of the standard solution consumed in the titration allows for calculation of the concentration of the analyte in the original solution.

How do they use redox titration in real-world application?

Redox titration is commonly used in chemistry laboratories to determine the amount of a specific substance in a solution by measuring the amount of electrons transferred during the titration process. This method is used in various industries such as pharmaceuticals, environmental monitoring, and food and beverage production for quality control and analysis purposes.

What is the purpose of titration?

The process of Titration is used to determine the unknown concentration of a known reactant, such as acid. It is used industially to find the strength of acid so it can be used for other things.

What is hypo solution used in chemistry for iodometric titration?

Hypo solution, also known as sodium thiosulfate solution, is commonly used in chemistry for iodometric titrations as a titrant to react with excess iodine after the reaction with the analyte. It is used to neutralize the excess iodine to determine the amount of analyte present in the sample.

What is a titre value in titrations?

A titre value in titrations is the volume of titrant solution required to reach the endpoint of a reaction with the analyte solution. It is used to calculate the concentration of the analyte based on the known concentration of the titrant and the stoichiometry of the reaction.

Why is the pH adjusted to 10 before the complexometric titration?

Adjusting the pH to 10 before complexometric titration helps ensure the formation of a stable metal-ligand complex. At pH 10, metal ions form strong complexes with the chelating agent (usually EDTA) without interference from other ions. This pH also helps maintain the reaction conditions constant and improves the accuracy of the titration results.

How do you do a titration?

To perform a titration, you slowly add a solution of known concentration (titrant) to a solution of unknown concentration until a reaction is complete, as indicated by a color change or other observable change. The volume of titrant used is used to calculate the concentration of the unknown solution.

What is conductometric titrations?

Acid-base titrations redox titrations are known to us in which commonly indicators are used to locate the end point eg., methyl orange,phenolphlthalene for acid base titrations and starch solutions for iodemetry type redox process. How ever electrical conductance measurement canbe used as a tool to locate the end point. eg1. HCl vs NaOH Consider a solution of a strong acid, hydrochloric acid, HCl for instance, towhich a solution of a strong base, sodium hydroxide NaOH, is added. The reaction occurs. For each amount of NaOH added equivalent amount of hydrogen ions is removed. Effectively, the faster moving H+ cation is replaced by the slower moving Na+ ion, and the conductivity of the titrated solution as well as the measured conductance of the cell fall. This continues until the equivalence point is reached, at which we have a solution of sodium chloride, NaCl. If more base is added an increase in conductivity or conductance is observed, since more ions are being added and the neutralization reaction no longer removes an appreciable number any of them. Consequently, in the titration of a strong acid with a strong base, the conductance has a minimum at the equivalence point. This minimum can be used instead of an indicator dye to determine the endpoint of the titration. Conductometric titration curve, that is a plot of the measured conductance or conductivity values against the number of milliliters of NaOH solution, is shown in Fig. sorry I could not send the graph, and refer other cases but for a detailed discussion, you may mail --Dr.T.SRINIVASA MURTHY MSC., Ph.D ,Sr Faculty (IIT-JEE) ,NARAYANA ACADEMY HYDERABAD MAIL : vasuchemistry@gmail.com

What is the effect of formaldehyde on the titration curve of glycine?

Its probably formol titration.that you are referring to ..where the formaldehyde blocks the amino group of glycine,forming a dimethylol derivative such that glycine instead of behaving like an ampholyte behaves like a carboxylic acid,Now you can treat it like an acid and titrate it with alkali

What are the advantages of potentiometric titrations?

the advantages of potentiometric titration are that it gives a sharp end point in every case, apparatus used is not sophisticated thus easy to handle .

disadvantage is its high temperature dependance.

What is titration formula?

The formula for titration involves calculating the volume of titrant solution needed to reach the endpoint of a reaction with the analyte. It is typically given as M1V1 = M2V2, where M1 is the molarity of the titrant, V1 is the volume of titrant used, M2 is the molarity of the analyte, and V2 is the volume of analyte solution used.

How does water affect titration?

Water can affect titration by diluting the analyte, potentially leading to inaccurate results. It can also impact the pH of the solution being titrated, affecting the equivalence point and the shape of the titration curve. It is important to take into consideration the amount of water present to ensure accurate and precise titration results.

What indicators can be used in titration?

Acid Alkali Indicator Details Strong Strong Methyl Orange pipette alkali, and burette acid (change from yellow to light pink when neutralised) Weak Strong Phenolphthalien pipette acid, and burette alkali (change from colouless to salmon pink when neutralised) Strong Weak Methyl Orange pipette alkali, and burette acid (change from yellow to light pink when neutralised) Acid Alkali Indicator Details Strong Strong Methyl Orange pipette alkali, and burette acid (change from yellow to light pink when neutralised) Weak Strong Phenolphthalien pipette acid, and burette alkali (change from colouless to salmon pink when neutralised) Strong Weak Methyl Orange pipette alkali, and burette acid (change from yellow to light pink when neutralised)

Why buffer solution must be used for titration with EDTA?

A buffer solution must be used for titration with EDTA because it helps maintain a constant pH during the titration process. EDTA forms complexes with metal ions at specific pH levels, so maintaining a steady pH ensures accurate and reproducible results. Additionally, a buffer solution helps prevent changes in the pH that could interfere with the formation of the metal-EDTA complexes.