Final answer:
The percentage yield is calculated using the ratio of actual yield to theoretical yield, multiplied by 100%. For a theoretical yield of 20g and an actual yield of 15g, the percentage yield is 75%.
Step-by-step explanation:
The percentage yield of a chemical reaction is the ratio of the actual yield to the theoretical yield, expressed as a percentage. To calculate it, the formula is: Percent Yield = (actual yield / theoretical yield) x 100%. In the provided example, where the theoretical yield is 20g and the actual yield is 15g, the percentage yield would be (15g / 20g) x 100% which equals 75%.
The percent yield of a reaction is the ratio of the actual yield to the theoretical yield, expressed as a percentage. In this case, the theoretical yield is 20g and the actual yield is 15g. To calculate the percentage yield, divide the actual yield by the theoretical yield and multiply by 100:
Percentage Yield = (actual yield / theoretical yield) x 100
Percentage Yield = (15g / 20g) x 100 = 75%