Final answer:
Percent yield is calculated by dividing the actual yield by the theoretical yield and multiplying by 100%. In the case of melting point range, the percent yield can be calculated by finding the percentage of the observed melting point that falls within the range of the actual melting point.
Step-by-step explanation:
Percent yield is calculated by dividing the actual yield by the theoretical yield and multiplying by 100%. In the case of melting point range, the percent yield can be calculated by finding the percentage of the observed melting point that falls within the range of the actual melting point. To calculate the percent yield for Maleic acid with an observed melting point range of 126-129C and an actual melting point range of 134-135C, you would divide the range of the observed melting point (3 degrees) by the range of the actual melting point (2 degrees) and multiply by 100%.