Therefore, errors in the data obtained were caused more than likely by human error in reading the thermometer or heating the reaction a little longer than past its desired melting point. The percent yield obtained from the experiment was 62.78%. This was calculated by taking the beginning E-stilbene amount which was 0.9 grams of E-stilbene and multiplying it by the molecular weight of the E-stilbene which was 180.245 g/mol. The resulting value was 0.0049932 moles of E-stilbene. This value was then multiplied by the molecular weight of dibromostilbene which was 340.058 g/mol. Therefore, the expected value was 1.698 grams of dibromostilbene. The actual value from the experiment was 1.066 grams of dibromostilbene. The actual value, 1.066, was divided by the expected value of 1.698. Then, the resulting number
Therefore, errors in the data obtained were caused more than likely by human error in reading the thermometer or heating the reaction a little longer than past its desired melting point. The percent yield obtained from the experiment was 62.78%. This was calculated by taking the beginning E-stilbene amount which was 0.9 grams of E-stilbene and multiplying it by the molecular weight of the E-stilbene which was 180.245 g/mol. The resulting value was 0.0049932 moles of E-stilbene. This value was then multiplied by the molecular weight of dibromostilbene which was 340.058 g/mol. Therefore, the expected value was 1.698 grams of dibromostilbene. The actual value from the experiment was 1.066 grams of dibromostilbene. The actual value, 1.066, was divided by the expected value of 1.698. Then, the resulting number