To calculate the percent yield for this reaction, you can use the following formula:Percent Yield = Actual Yield / Theoretical Yield x 100In this case, the actual yield is 2.0 grams, and the theoretical yield is 2.5 grams. Plugging these values into the formula, we get:Percent Yield = 2.0 grams / 2.5 grams x 100Percent Yield = 0.8 x 100Percent Yield = 80%So, the percent yield for this reaction is 80%.