solving a calorimetry problem. This is the reaction: X(OH)3 + 3 HCL -> XCl3 + 3H2O. X is just an imaginary element only. In solving the enthalpy of the reaction, I need to find the moles of limiting reactant since it's part of the equation. My problem is, in solving the moles of both HCl and X(OH)3, I don't know which part of product (moles of XCl3 or moles of H2O?) should I compare the moles of the reactants. Let's say we have 0.2 mol/liter HCl and has 0.500 L, should I divide it by 3 (due to XCl3 - HCL ratio of 1:3) or should I divide it by 1 only (due to H2O - HCl ratio of 3:3) to get the moles of the product? Basically, between H2O and XCl3 which are both products but have different number of moles (1 and 3 respectively), in which product should I compare the moles of both the reactants to find the limiting reactant?
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.
I'm solving a calorimetry problem. This is the reaction: X(OH)3 + 3 HCL -> XCl3 + 3H2O. X is just an imaginary element only. In solving the enthalpy of the reaction, I need to find the moles of limiting reactant since it's part of the equation. My problem is, in solving the moles of both HCl and X(OH)3, I don't know which part of product (moles of XCl3 or moles of H2O?) should I compare the moles of the reactants. Let's say we have 0.2 mol/liter HCl and has 0.500 L, should I divide it by 3 (due to XCl3 - HCL ratio of 1:3) or should I divide it by 1 only (due to H2O - HCl ratio of 3:3) to get the moles of the product? Basically, between H2O and XCl3 which are both products but have different number of moles (1 and 3 respectively), in which product should I compare the moles of both the reactants to find the limiting reactant?
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