Question

Besides controlling the rate of the reaction (this would include minimizing side products and minimizing NaBH₄ decomposition), you used an ice-bath for two other purposes (specifically in the recrystallization process) in the reduction experiment you carried out. List these two purposes.

a) Enhancing reaction kinetics and increasing yield
b) Minimizing impurities and controlling crystallization
c) Reducing environmental impact and ensuring safety
d) Controlling temperature and facilitating filtration

Answer 1

The two purposes of using an ice bath in the recrystallization process during the reduction experiment are to control temperature and facilitate filtration.

Step-by-step explanation:

The two purposes of using an ice bath in the recrystallization process during the reduction experiment are to control temperature and to facilitate filtration.

By keeping the reaction mixture at a low temperature, the ice bath helps control the rate of the reaction and minimizes the formation of side products. This allows for better control of the reaction conditions and improves the yield of the desired product.

In addition, cooling the reaction mixture with an ice bath aids in the crystallization process. Lowering the temperature promotes the formation of pure crystals by reducing the solubility of impurities. The resulting crystals can then be easily separated from the solution through filtration.