If the theoretical yeild for a reaction is 156 grams and you actually made 122 grams of the product, what is your percentage yeild

The theoretical yield is the amount of product formed from the limiting reactant available. The actual yield is the amount of product formed after the reaction proceeds. The percent yield is calculated as:

Percent Yield = (actual yield / theoretical yield) x 100%

Percent Yield = (122 g / 156 g) x 100%

Percent Yield = 78.2%