Mohr’s Method of Precipitation Titration

MOHR’S METHOD OF DETERMINATION OF CHLORIDES BY TITRATION WITH SILVER NITRATE is one of the oldest titration methods still in use – it was researched and published by Karl Friedrich Mohr in 1856.The idea behind this titration is very simple – chlorides are titrated with the silver nitrate solution in the presence of chromate anions. … Read more

Accuracy and Precision

Accuracy In analytical chemistry, the term ‘accuracy’ is used in relation to a chemical measurement. The International Vocabulary of Basic and General Terms in Metrology (VIM) defines accuracy of measurement as… “closeness of the agreement between the result of a measurement and a true value.” The VIM reminds us that accuracy is a “qualitative concept” … Read more

Methods of Minimizing Errors

Minimizing Systematic Error Systematic error can be difficult to identify and correct. Given a particular experimental procedure and setup, it doesn’t matter how many times you repeat and average your measurements; the error remains unchanged. No statistical analysis of the data set will eliminate a systematic error, or even alert you to its presence. Systematic … Read more

Pharmaceutical error and their types

Pharmaceutical Errors Pharmaceutical mistakes cause more than one million serious injuries or deaths in the United States each year. Pharmaceutical errors are generally preventable, and they can result in a type of medical malpractice lawsuit. A pharmaceutical error can happen at any point in the prescription process from the time the medication is picked to … Read more

Alcohol Number Determination

Alcohol Number Determination represents the number of milliliters of ethanol at 15°C obtained from 10mL of tincture or other preparations containing ethanol by the following Methods. A: Method 1 (Distilling method) This is a method to determine the Alcohol Number by reading the number of milliliters of ethanol distillate at 15°C obtained from 10 mL … Read more

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