Respuesta :

Ammimochi

Reasons why a 100% yield is not obtained in actual chemical manufacturing processes may be;

- The reactor has a certain capacity to produce a certain yield  

- There is a limiting reactant that runs out and the reaction can not proceed any further

It may also be because the reaction is reversible or because of loses of desired product during isolation and purification.  

The loss of sample at the time of recovery and the incomplete or the competing reactions are the two prime reasons that 100% yield is not obtained.  

• The percent ratio of the actual yield to the theoretical yield is called percent yield.  

• The amount of product obtained from a chemical reaction is termed actual yield.  

• The amount of product obtained from the balanced or stoichiometric equation with the use of a limiting reactant to determine the product is termed theoretical yield.  

• Generally, the percent yield is always lesser than  hundred percent as the actual yield is usually less than the theoretical yield.  

• The prime reasons for that are loss of sample at the time of recovery and incomplete or competing reactions.  

Thus, the loss of sample at the time of recovery and the incomplete or the competing reactions are the two prime reasons that 100% yield is not obtained.  

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