Titrasi: Perbedaan revisi

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'''Titrasi''' merupakan metode analisa kimia secara kuantitatif yang biasa digunakan dalam laboratorium untuk menentukan konsentrasi dari reaktan. Karena pengukuran volum memainkan peranan penting dalam titrasi, maka teknik ini juga dikenali dengan analisa volumetrik.
'''Titration''' merupakan is a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of a known reactant. Because volume measurements play a key role in titration, it is also known as volumetric analysis.
A reagent, called the titrant or titrator,[1] of a known concentration (a standard solution) and volume is used to react with a solution of the analyte or titrand,[2] whose concentration is not known. Using a calibrated burette to add the titrant, it is possible to determine the exact amount that has been consumed when the endpoint is reached. The endpoint is the point at which the titration is complete, as determined by an indicator (see below). This is ideally the same volume as the equivalence point—the volume of added titrant at which the number of moles of titrant is equal to the number of moles of analyte, or some multiple thereof (as in polyprotic acids). In the classic strong acid-strong base titration, the endpoint of a titration is the point at which the pH of the reactant is just about equal to 7, and often when the solution takes on a persisting solid color as in the pink of phenolphthalein indicator. There are however many different types of titrations (see below).