Question

Remember, your recrystallization is successful if you've purified your material. Which analytical technique that you performed on the purified material is the best measure of purity. Explain how your results demonstrate that your compound is pure or impure, making certain to compare your results to literature.

Answer 1

The most accurate means of determining the purity of a substance is through the use of analytical methods.

The most involve method is chemical analysis, which can pinpoint the presence, identity and amount of impurities in the sample. The most simple chemical methods include gravimetry and titration.

In gravametry we can calculate the theoritical yield of the crystles according to the chemical reaction involved in the titration. If impurities are present in it the reading and yield will be vary.