Find the limiting reagent and theoretical yield for the following: 1) Consider the reaction below and find the limiting reagent and theoretical yield of aspirin when 2.6 g of salicylic acid (MM 138.12 = g/mol) is reacted with 4.0 mL of acetic anhydride (MM = 102.09 g/mol and D = 1.082 g/mL). gloed OH + OH C₂H5O3 Salicylic Acid C₂H₂O3 Acetic Anhydride H₂PO4 je OH + C₂H₂O4 Acetyl Salicylic Acid Aspirin OH C₂H₂O₂ Acetic Acid
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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