Adipic acid, C6H10O4, is a raw material for the making of nylon and it can be prepared in the laboratory by the following (unbalanced) reaction between cyclohexene, C6H10, and sodium dichromate, Na2Cr2O7 in sulfuric acid: C6H10(l) + Na2Cr2O7(aq) + H2SO4(aq) = C6H10O4(aq) + Cr2(SO4)3(aq) + Na2SO4(aq) + H2O T There are side reactions that reduce the yield of adipic acid. Losses of product during its purification also reduce the overall yield. A typical yield of purified adipic acid is 68.60%. How many grams of cyclohexene are needed to prepare 11.9 grams of purified adipic acid, which is a 63.60% yield?
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.
Adipic acid, C6H10O4, is a raw material for the making of nylon and it can be prepared in the laboratory by the following (unbalanced) reaction between cyclohexene, C6H10, and sodium dichromate, Na2Cr2O7 in sulfuric acid: C6H10(l) + Na2Cr2O7(aq) + H2SO4(aq) = C6H10O4(aq) + Cr2(SO4)3(aq) + Na2SO4(aq) + H2O T
There are side reactions that reduce the yield of adipic acid. Losses of product during its purification also reduce the overall yield. A typical yield of purified adipic acid is 68.60%.
How many grams of cyclohexene are needed to prepare 11.9 grams of purified adipic acid, which is a 63.60% yield?
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