Tuesday, September 9, 2014

Calculation: V1M1 = V2M2


Acid-base titration aims to determine the amount of a solution with a concentration of known concentration that completely reacted with the appropriate amount of solution being analyzed or want to know the levels or concentration.
Also called acid-base titration titration alkalimetry addition. Levels of acid or alkali solution concentration can be determined by the volumetric method with acid-base titration technique. Is the volumetric quantitative chemical analysis techniques to establish the levels of a sample by measuring the volume of solution which involved chemical reactions based on equality kimia.Kesetaraan determined through titration end point is known from the color change indicator and the levels of the sample to be determined through calculations based on chemical equations.
Acid-base titration is a technique for determining the concentration of acid or base solution. action dimension The reaction that occurs is an acid-base reaction (neutralization). The solution is already known kosentrasinya called standard solution. Equivalent point is a point when acids and bases react with appropriate consumables accompanied by changes in the color indicator. The end point of the titration is when a color change of the indicator.
3 Dilute NaOH solution of unknown concentration until the mark lines and shake until homogeneous, then rinse tube biuret with NaOH and diluted NaOH insert the tube into biuret, read and record the initial scale.
4. Stream biuret solution of NaOH to a solution of oxalic acid with caution (drop by drop), until the color changes from clear white to pink (end point titration).
Calculation: V1M1 = V2M2
Thus the concentration of the acid used in this experiment action dimension a dalah 0.37. Levels or concentrations of oxalic acid can be determined through a process of titration, namely with mereaksikanasam oxalate (titrat) were added 3 drops of indicator PP with NaOH (titrant). Titration should be stopped when the oxalic acid solution is mixed with 2 drops of the indicator to change color from clear to pink. The volume of NaOH used will affect the result of the concentration of oxalic acid, so it must be very careful doing this lab. Once the volume of NaOH (base) is known, then the concentration of oxalic acid HCl can be calculated.


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