. A student synthesizes aspirin in the lab by reacting salicylic acid with acetic anhydride in the lowing reaction below: + HO ОН acetic anhydride, C4H6O3 alicyclic acid, acetic acid, aspirin, C9H3O4 C2H4O2 а. If the student reacts 10.0g of acetic anhydride with 10.0g of salicylic acid, what is the maximum amount of product the student could obtain in grams? b. What is the mass (in grams) of the excess reactant leftover after the reaction is completed? С. The student isolated 3.52g of aspirin after drying in a vacuum oven overnight. What is the
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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