What is a titration a level chemistry?
Titration is a procedure of careful addition of one solution to another solution a little at a time until a specificend point is reached. The concentrations of acid and base used for titrations is important, as small additions must only change the pH level by small amounts for accuracy.
What are the 4 types of titration?
Types of Titration
- Acid-base Titrations.
- Redox Titrations.
- Precipitation Titrations.
- Complexometric Titrations.
What is a standard solution A level chemistry?
A standard solution is a a solution of accurately known concentration prepared from a primary standard (a compound which is stable, of high purity, highly soluble in water and of a high molar mass to allow for accurate weighing) that is weighed accurately and made up to a fixed volume.
How you can get the most accurate reading in titration?
A pH electrode should be calibrated each day (at least once) it is used to get the most accurate reading. A two-point method is typically sufficient, as long as the appropriate buffers are used.
What is pM indicator?
A complexometric indicator is an ionochromic dye that undergoes a definite color change in presence of specific metal ions. Complexometric indicators are also known as pM indicators.
What is Karl Fischer principle and reaction?
The principle of Karl Fischer titration is completely based on the oxidation reaction between sulphur dioxide and iodine. Water reacts with sulphur dioxide and iodine to form hydrogen iodide and sulphur trioxide. When all the water is consumed, it reaches an endpoint.
Who discovered the pH scale?
Søren Sørensen
Søren Sørensen. In 1909 Sørensen, a Danish chemist, introduced the concept of pH as a convenient way of expressing acidity. Industry laboratories, while intended to advance practical industrial processes, can also be the birthplace of theoretical concepts.