What setting should you have on the Fisher-Johns apparatus when you are in the vicinity of the melting point for each of the compounds in Problem 2.1?
(a) about 70
(b) about 62

Question

Quizplus · Accepted Answer

The Answer is The Fisher-Johns apparatus should be set close to the expected melting point for each compound. Therefore, for a compound with a melting point of about 70, the apparatus should be set slightly below, around 65 to allow for a gradual increase in temperature. Similarly, for a compound with a melting point of about 62, the apparatus should be set slightly below, around 57. This allows for accurate determination of the melting point without rapidly surpassing it.

What Setting Should You Have on the Fisher-Johns Apparatus When