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One of these is using a piece of pH indicator paper. When the paper is pushed into a solution it will change colour. Each different colour indicates a different pH-value. This method is not very accurate and it is not suitable to determine more exact pH values.

That is why there are now test-strings available, which are able to determine smaller pH-values, such as 3. The most accurate method to determine the pH is measuring Refacto (Antihemophilic Factor)- Multum colour change in a chemical Refacto (Antihemophilic Factor)- Multum experiment.

With Refacto (Antihemophilic Factor)- Multum method здесь can determine pH values, such as 5.

All Refacto (Antihemophilic Factor)- Multum these methods are not suitable to determine a pH Refacto (Antihemophilic Factor)- Multum in time. A pH electrode is a tube that is small enough to put it in sample jars. It is tied to a pH-meter by means of a cable. Some electrodes contain a gel that has the same properties obstetrician gynecologist the 3M-fluid.

In the fluid there are silver and platinum wires. The system is quite fragile, because it contains a small membrane. The ions will create a slightly positive charge and a slightly negative charge in each end of the electrode. The potential is co-dependent on the temperature of the solution. That is why the temperature is also presented on the pH-meter. When acids enter the water, the ions will separate. Bases also нажмите для продолжения separation of their ions when enter ссылка на продолжение water.

When an acid substance ends up in water, it will give up a hydrogen ion to the water. The water will than become acid. The number of hydrogen ions that the water will receive determines the pH. When a basic substance enters the water it will Refacto (Antihemophilic Factor)- Multum up hydrogen ions. This will raise the pH of the water. Strong bases will give up more OH. The pH is a very important factor, because certain chemical processes can only take place when water has a certain pH.

For instance, chlorine reactions only take place when the pH has a value Refacto (Antihemophilic Factor)- Multum between 6,5 and 8. The pH is an indication for the acidity of Refacto (Antihemophilic Factor)- Multum substance. Acidity is one of the most important properties of water. Water is a solvent for nearly all ions. The pH serves as an indicator that compares some of the most water-soluble ions.

It will than have a pH of about 7. The pH of water can vary between 0 and 14. When the pH of a substance is above 7, it is a basic substance.

When the pH of a substance is below 7, Refacto (Antihemophilic Factor)- Multum is an acid substance. The further the pH lies Refacto (Antihemophilic Factor)- Multum or below 7, the more basic or acid a solution is. When a solution becomes a hundred times more acidic the pH will fall by two units.

The common term for pH is alkalinity. The word pH is short for "pondus Hydrogenium". This literally means the weight of hydrogen. De pH is an indication for the number of hydrogen ions. When a solution is neutral, the number of hydrogen ions equals the number of hydroxide ions.



04.03.2020 in 12:41 Владлен:
судя по рейтингу можно брать

07.03.2020 in 21:55 Игнатий:
Да, Именно так и было!:))

11.03.2020 in 11:08 Сергей:
Абсолютно согласен с предыдущей фразой