Question

In calculating the percent yield for this experiment, which of following the statements is/are correct?

a. In this unique case we can compare grams to grams since our molecular formula is the same and our mole ratio is 1:1.

b. The mole ratio between Maleic and Fumaric Acid is 1:1.

c. Just like any percent yield calculation you need to compare grams starting material to grams product.

d. Just like any percent yield calculation we can use the balanced equation to determine the mole ratio first. Then using this mole ratio we can determine the expected amount of moles of product that could form based on the amount of starting material. We then take the actual amount of moles isolated and divide it by the expected amount of moles calculated to determine a percentage.

e. We cannot determine a percent yield, as no reaction has occurred.

Answer 1

d. Just like any percent yield calculation we can use the balanced equation to determine the mole ratio first. Then using this mole ratio we can determine the expected amount of moles of product that could form based on the amount of starting material. We then take the actual amount of moles isolated and divide it by the expected amount of moles calculated to determine a percentage.

percentage yield = atual yield*100/theoritical yield

The theoritical yield calculated from the balanced equation.