Considerthefollowingreaction: 4D + 5E ➝2X +3Z. Achemistreacts18.00gDand 17.00 g E in a test tube. Molar Mass of Z: 155.00 g/mol Molar Mass of X: 82.00 g/mol a. Determine the theoretical yield of Z. Molar Mass of D: 270.0 g/mol Molar Mass of E: 268.00 g/mol b. What is the limiting reactant? _________ Excess reactant?__________ c. Determine the amount of excess reactant that remains after the reaction goes to completion.
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.
Considerthefollowingreaction: 4D + 5E ➝2X +3Z. Achemistreacts18.00gDand 17.00 g E in a test tube.
Molar Mass of Z: 155.00 g/mol Molar Mass of X: 82.00 g/mol
a. Determine the theoretical yield of Z.
Molar Mass of D: 270.0 g/mol Molar Mass of E: 268.00 g/mol
b. What is the limiting reactant? _________
Excess reactant?__________
c. Determine the amount of excess reactant that remains after the reaction goes to completion.
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