CHEM 310L Lab Videos

Using Burets and Pipets

Using Burets and Pipets



 Analytical Glassware Introduction

Analytical Glassware Introduction



 
Cleaning Glassware
 
 
 

 
 
Using a Desiccator
 

Use of a desiccator

 
 

 
 
Use of transfer (volumetric) pipet
 
A volumetric (transfer) pipet is the most accurate pipet that you can use, but it is designed to transfer only one specific volume of solution.  Instructions are provided for:  (1) rinsing the pipet, (2) using the pipet to transfer the desired solution, and (3) cleaning the pipet after use.
 

Use of a transfer (volumetric) pipet

 
 

 
Use of Mohr (measuring) pipet
 
 
 A Mohr (graduated) pipet is the most versatile pipet that you can use, because it can deliver any volume ranging from 0.0 mL to the maximum volume stated on the pipet.  However, because a Mohr pipet is wider than a volumetric pipet, it is not as accurate.  Remember to use only a volumetric pipet if you really need to transfer the liquid very accurately. 

Using a Mohr (graduated) pipet



 
Reading a meniscus
   

Reading a Meniscus




Estimating the last digit

Estimating the last digit




Use of burets and performing titrations
 

Titration technique using a buret

 
 


Use of a volumetric flask
 

Use of a volumetric flask

 

Use of Volumetric Flasks




 
Calibration of a pH Meter
 

Calibration of a pH meter

 

 

How Does a Spectrophotometer Work?

How Does a Spectrophotometer Work?


Spectrophotometers and Beer's Law

Spectrophotometers and Beer's Law



Khan Academy - Spectrophotometry Example - Beer's Law curves and related calculations

YouTube Video



Spectrophotometric Determination of Iron

Spectrophotometric Determination of Iron


Spectrophotometric Determination of the Dissociation Constant of an Indicator (HIn)
 
 

Spectrophotometric Determination of the pKa of an Indicator

 
 
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