Net Ionic Equation examples

Consider the reaction of 50.0 mL of 0.25 M hydrochloric acid with 25.0 mL of 0.50 M sodium hydroxide.

Oxidation/Reduction Reaction examples

 

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As another example we can look at a key oxidation reaction in glycolysis, the central pathway of metabolism. Don't worry about these reactions - they will not be on an exam. They are presented for your interest.

    • In this case we use a biological oxidizing agent, NAD+ to take electrons (in the form of a hydride ion, H:-)

chemical equation for the oxidation of Ga-3-P to 1,3-bisPGA by NAD+

    • Frequently organisms need to operate this reaction under anaerobic (oxygen free) conditions. For example the maximum power (energy/sec) you can get from your muscles is anaerobically. For this to occur you need to regenerate the oxidizer (NAD+) without the presence of oxygen. For this to occur we use another reaction:

chemical equation for the reduction of Pyruvate to L-lactate by NADH

The mechanism for this electron transfer is shown below:

simplified mechanism for the elctron transfer used in lactate dehydrogenase

 

© R A Paselk

Last modified 21 September 2009