Why is the actual yield less than the theoretical yield?

Answer 1

All reactants have impurities and those impurities become the limiting factor for the reaction. This means that the actual yield will be lower because there will not be the total measured amount of reactants. Fewer reactants equals lower output.

Answer 2

The theoretical yield does not take into account impurities in the reactants. When one reactant has an impurity, there is less of it which makes it a limiting reactant, thus reducing the actual yield.

Answer 3

There are several reasons why actual yields typicallly are less than what would be calculated theoretically:

-not all reactions go to completion

-impure reactants produce less product than expected

-competing side reactions may consume some of the reactants

-some of the product may be lost when it is processed for purification

Answer 4

Theoretical yield is what would be if 100% of the reaction was complete and no amount of product was lost in any way, actually processes are not as efficient.

This all depends on the accuracy of the one doing the experiment and on the reaction. Some reactions are reversible so less than 100% of the reaction goes to completion; other reactions do not go to completion because they require high amounts of energy or more time etc. Substances in the reaction can be lost during the procedure or be hard to separate from other parts of the experiment. In chemistry there is always an expected amount of error to a degree.

The percent of error can be calculated with this formula:

% error = (|actual yield - theoretical yield| / theoretical yield) x 100%

Answer 5

Actual yield is often less than theoretical yield due to various factors such as incomplete reactions, side reactions, impurities, and loss of product during isolation or purification. These factors can reduce the amount of product obtained in a chemical reaction compared to the amount that would be expected based on stoichiometry.

Answer 6

There are several factors, chief of them is there is no perfect measuring apparatus. Time is also another important factor to take into consideration.

Answer 7

actual yield is less than theoretical yield because it is greater than theoretical yield

Answer 8

Because according to calculations the whale mass is quite large compared to a ducks mass

Answer 9

This will due to loss from spillage, gas escape, filter paper holding some product etc.,