Blue vitriol, a compound used for agricultural purposes,, is a hydrate, which means that a certain number of water molecules are included in the solid structure. Its formula can be written as CuSO4⋅xH2O, where x is the number of moles of H2O per mole of CuSO4. When a 0.896- g sample of blue vitriol is heated at 125 ∘C, all the water of hydration is lost, leaving 0.573 of CuSO4. What is the value of x? Express your answer as an integer.
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.
Blue vitriol, a compound used for agricultural purposes,, is a hydrate, which means that a certain number of water molecules are included in the solid structure. Its formula can be written as CuSO4⋅xH2O, where x is the number of moles of H2O per mole of CuSO4. When a 0.896- g sample of blue vitriol is heated at 125 ∘C, all the water of hydration is lost, leaving 0.573 of CuSO4. What is the value of x? Express your answer as an integer.
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