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Introduction

In this lab, the goals are: understand basic lab procedure, understand the concept of precision, accuracy and errors in measurements, and understand that different types of volumetric glassware are used in different types of situations. Precision is a term used to describe the degree to which measurements agree with each other, accuracy is a term that describes the degree to which measurements agree with the true value. Precision and accuracy can both be affected by errors that occur due to imperfections of various lab equipment such as analytical balances and volumetric glassware. Errors can either be random or determinate. Random errors are irreproducible and determinate errors effect measurements the same way for each measurement.

The objectives of the lab are: to determine the standard deviation of two different analytical balances, and to determine out of the buret, pipet and graduated cylinder which one is the most accurate. In order to determine which vo...

Posted by: Joel Chibota

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