Percent Yield

The theoretical yield of a reaction is the quantity of products expected (calculation). The amount produced in an experiment is the actual yield. To find the percent yield follow this calculation:

% yield= actual / theoretical x 100

Here is a short video to further explain:

http://www.youtube.com/watch?v=mOo3KuqM64c


Examples:

1. The production of Urea CO(NH2)2 is given by: 2NH3 + CO2 ---> CO(NH2)2 + H2O
If 47.7g of Urea are produced, determine

a.) theoretical yield if 1mol of CO2 reacts
1mol CO2 x 1 CO( NH2)2 \ 1 CO2 x 60.1 g= 60.1 g

b.) actual yield
47.7 g

c.) percent yield
47.7g / 60.1 g x 100= 80%

-- Krizia Umali