Because the pH of a neutral solution is 7 an indicator that changes color near this pH should be used for an acid-base titration. But if you want to aim for higher scores there are many unique topics for chemistry projects for Class 11.
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Enter the digits of titrant used as B.
. It is determined by the amount of potassium hydroxide KOH base required to neutralize the acid in one gram of an oil sample. AN does not represent the absolute acid concentration of the oil sample. If the initial pH is less than 45 record the initial pH value.
Continue the titration to pH 42. Phenolphthalein indicator changes color in the pH range of 83 to 100 and can be used to determine when the correct amount of base has been added. Record the titrant used to this point as B.
Write down the pH reading where you. With the digital titrator and sulfuric acid cartridge to pH 45. As lab projects and practical examinations collectively hold 30 marks in CBSE Class 11.
AN is the measure of acid concentration in a nonaqueous solution. Titrate until the pH is 03 units below the starting point. Record titrant used to this point as A.
The standard unit of measure is mg KOHg. Crystallization Titration Organic Chemistry Surface Chemistry Equilibrium are some of the common topics that students pick for their Class 11 Chemistry project. The AN measurement detects both weak.
This color change is termed the endpoint of the titration.
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