Question

1. After you have extracted a product, why might you get a melting
temperature range? What do you do with the temperature range you
determine?

2. How might you calculate % yield from a reaction?

Answer 1

1) There may be some possibility that after extraction some impurities or side products are still present in it. Due to which melting point of our extracted product comes out little bit different from actual melting point. Thus we take its melting temperature range and higher the difference, higher will be the impurities in our extracted product.

2) %yield = Yield of extracted product/ Theoretical yield ×100

Theoretical yield was calculated from the amount of reactant we have taken.