How is the percent yield calculated?

1 Answer
anor277
Jul 18, 2018

Just to retire this question....

Explanation:

...usually we take the quotient...

#"% yield"="moles of product"/"moles of limiting reactant"xx100%#

And to find out the #"limiting reactant"# we have to write the stoichiometric reaction that represents the synthesis of the product. For, say an esterification reaction in which the alcohol were present in excess...

#RCO_2H + R'OH stackrel(H^+)rarrRCO_2R' + H_2O#...

...we would assess the yield on the basis of...

#"% yield"=n_"ester"/n_"parent acid"xx100%=??%#..

Here product ester, and parent acid are present in a #1:1# molar ratio...this ratio will not apply with other stoichiometries...

Related questions
See all questions in Percent Yield
Impact of this question
2826 views around the world
You can reuse this answer
Creative Commons License