Exp16-ShilpaDass

=Why is phosphoric acid used to dissolve adrenaline in this experiment?=

From [|experiment 16] "2. 12:15) Adrenaline and phosphoric acid solution began to heat in 15mL glass vial in glycerol bath that was initially at 100C."

The reaction needs to take place at a high temperature. Therefore, both molecules (adrenaline and phosphoric acid) must be able to withstand high temperature and not boil away. Phosphoric acid has higher [|boiling point] than water (213 °C). This is because of its strong hydrogen bonds. Hydrogen bonds are the strongest type of bond, and therefore take the most energy to break apart [|(lecture 7]). Phosphoric acid has three hydrogen bonds (the three hydroxyl groups attached to it).


 * Full Marks**.



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