- What precipitation means?
- What is end point in titration?
- Which indicator is Mohr’s method?
- How do you calculate chloride content?
- What is back titration?
- What is Argentometric titration?
- What is a precipitation titration?
- What are the 4 types of titration?
- Which indicator is used in non aqueous titration?
- What is precipitation reaction?
- Why precipitation titration is called Argentometric titration?
- Why the chloride ion determination experiment is also called Argentometric titration?
- What is Mohr method of titration?
- Why the presence of chloride in drinking water is not recommended?
- Which indicator is not used in acid base titration?
- Why is potassium chromate used as an indicator?
- Which indicator is used in Volhard method?
- Which type of solution is used in Mohr method strong acid or strong base?
What precipitation means?
When we talk about precipitation, we are talking about water that is falling out of the sky, this could be rain, drizzle, snow, sleet, hail or something rarer!.
What is end point in titration?
end point: the point during a titration when an indicator shows that the amount of reactant necessary for a complete reaction has been added to a solution.
Which indicator is Mohr’s method?
chromate ionsIn Mohr’s method, chromate ions are used as the indicator.
How do you calculate chloride content?
The concentration of chloride ions is determined by subtracting the titration findings of the moles of silver ions that reacted with the thiocyanate from the total moles of silver nitrate added to the solution. This method is used when the pH of the solution, after the sample has been prepared, is acidic.
What is back titration?
Back titration is a titration done in reverse; instead of titrating the original sample, a known excess of standard reagent is added to the solution, and the excess is titrated.
What is Argentometric titration?
In analytical chemistry, argentometry is a type of titration involving the silver(I) ion. Typically, it is used to determine the amount of chloride present in a sample. The sample solution is titrated against a solution of silver nitrate of known concentration.
What is a precipitation titration?
It is a titrimetric method which involves the formation of precipitates during the experiment of titration. The titrant reacts with the analyte and forms an insoluble substance. When the titrant is excess it reacts with the indicator and signals to terminate the titration process. …
What are the 4 types of titration?
Types of TitrationAcid-base Titrations.Redox Titrations.Precipitation Titrations.Complexometric Titrations.
Which indicator is used in non aqueous titration?
Crystal voiletThe important indicator used for non-aqueous titration are follow:- 1. Crystal voilet:- It is used as 0.5% solution in glacial acetic acid, it gives voilet colour in basic medium and yellowish green in acidic medium. It is most widely use for the titration of pyridine with prechloride acid.
What is precipitation reaction?
A precipitation reaction refers to the formation of an insoluble salt when two solutions containing soluble salts are combined. The insoluble salt that falls out of solution is known as the precipitate, hence the reaction’s name. Precipitation reactions can help determine the presence of various ions in solution.
Why precipitation titration is called Argentometric titration?
It is a type of precipitation titration which involves the use of silver ion. Symbol of silver is Ag which is taken from its latin name argentum. So, word argentometric is also taken from latin word argentum.
Why the chloride ion determination experiment is also called Argentometric titration?
As the name suggests these titrations are based on the formation of precipitates between the titrant and the analyte. … The later are called argentometric titrations. In this experiment you would learn about and perform the determination of chloride ions in an aqueous solution using an argentometric titration.
What is Mohr method of titration?
This method determines the chloride ion concentration of a solution by titration with silver nitrate. As the silver nitrate solution is slowly added, a precipitate of silver chloride forms. … If the solutions are acidic, the gravimetric method or Volhard’s method should be used.
Why the presence of chloride in drinking water is not recommended?
Chloride increases the electrical conductivity of water and thus increases its corrosivity. In metal pipes, chloride reacts with metal ions to form soluble salts (8), thus increasing levels of metals in drinking-water. In lead pipes, a protective oxide layer is built up, but chloride enhances galvanic corrosion (14).
Which indicator is not used in acid base titration?
The titration shows the end point lies between pH 8 and 10. This is due to the hydrolysis of sodium acetate formed. Hence phenolphthalein is a suitable indicator as its pH range is 8-9.8. However, methyl orange is not suitable as its pH range is 3.1 to 4.5.
Why is potassium chromate used as an indicator?
An indicator that could be used is potassium chromate(VI). Silver ions can combine with chromate(VI) ions to produce a red precipitate of silver chromate(VI). … So the sudden appearance of the red silver chromate can be used to indicate the end point of the titration.
Which indicator is used in Volhard method?
The volhard method is an indirect or back titration method in which an excess of a standard solution of silver nitrate is added to a chloride containing sample solution. The excess silver is then back titrated using a standardized solution of potassium or ammonium thiocyanate with ferric ion as an indicator.
Which type of solution is used in Mohr method strong acid or strong base?
Mohr method :- This method utilizes chromate as an indicator chromates form a precipitation with Ag but this precipitation has a greater solubility than that of AgCl. Ex. AgCl is formed first and after all cl is consuming than AgNO3 ppt formation are starting.