Reaction Kinetics

 
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Dependence of the reaction velocity on the type of substance II

 
Details

Product-No: P1149200

Dependence of the reaction velocity on the temperature I (acetic acid - magnesium)

 
Details

Product-No: P1149400

Saponification rate of tertbutyl chloride

Principle

Tertiary butylhalogenides are saponified in aqueous and aqueous basic solutions according to an SN1 mechanism to tertiary butanol. The kinetics of the reaction can be followed via the temporal consumption of hydroxide ions and evaluated accordingly.

Tasks

  1. Determine the ...
 
Details

Product-No: P3050101

Reaction rate and activation energy of the acid hydrolysis of ethyl acetate

Principle

In acid solution, ethyl acetate is hydrolysed to equivalent quantities of ethanol and acetic acid according to a pseudo-first order rate law. The alkalimetric determination of the acetic acid formed enables conclusions to be drawn on the temporal concentration of ...

 
Details

Product-No: P3050201

Halogen exchange rate with Cobra4 - Finkelstein reaction

Principle

Alkyl halides experience rapid halogen exchange reactions in appropriate solvents. These substitution reactions occur according to an SN2 mechanism.  Their velocity can be advantageously monitored via conductivity measurements if the ion mobilities in question clearly ...

 
Details

Product-No: P3050760

Halogen exchange rate with Cobra4 Mobile-Link - Finkelstein reaction

Principle

Alkyl halides experience rapid halogen exchange reactions in appropriate solvents. These substitution reactions occur according to an SN2 mechanism.  Their velocity can be advantageously monitored via conductivity measurements if the ion mobilities in question clearly ...

 
Details

Product-No: P3050762

Conductometric measurement of the saponification of esters (with Cobra3)

 
Details

Product-No: P3050811

Conductometric measurement of the saponification of esters with Cobra4

Principle

Carboxylic acid esters are saponified in an alkaline medium according to the second order reaction rate (law). In the process, hydroxide ions with a high ion mobility are consumed in reaction with an ester. The temporal course of reaction can thus be advantageously monitored by ...

 
Details

Product-No: P3050860

Enzyme kinetics: determination of the Michaelis-Menton con stant (with the Cobra3 Basic-U

 
Details

Product-No: P3050911

Inhibition and poisoning of enzymes (with the Cobra3 Basic- Unit)

 
Details

Product-No: P3051011

Dependence of the reaction velocity on the temperature (acetic acid - magnesium)

Principle

The reaction velocity is highly dependent on the temperature. In this experiment magnesium reacts with acetic acid. Comparing the velocity at the beginning of the reaction shows that the velocity doubles when the temperature increases 10 K.

Task

Investigate the reaction of ...

 
Details

Product-No: P3051101

Reaction kinetics with measureSpec

Principle

The organic dye crystal violet is decolorised in an alkaline medium. This reaction takes place according to a velocity-time law, hence it is a reaction of the first order.
Using measureSpec, the change in concentration of the dye can be traced by measuring the extinction at the ...

 
Details

Product-No: P3070601

Determination of the Michaelis constant with Cobra4

Principle

The enzymatic hydrolysis of urea in aqueous solution liberates carbon dixide and ammonia. The ions of these compounds increase the conductivity of the solution. Conductivity measurements can so be made to determine the rate of hydrolysis of urea by the enzyme urease at various ...

 
Details

Product-No: P4120360

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