CHM 1311 Study Guide - Heat Capacity, Jmol, Molar Mass

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14 Jul 2014
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Since energy is transferred in a closed system, two heat of reaction equations can be set equal to each other with a negative q representing the substance losing heat, while a positive q represents the substance gaining heat ( mc t =mc t ). This equation can be solved for specific heat capacity, which in turn can be used in the equation cmet x m m met 25j /mol to solve for molar mass. Once the heat of reaction is calculated, enthalpy of neutralization per mole of substance can be calculated using the equation n h = is the heat of reaction and nx. In this equation n h is the enthalpy of neutralization, qn qn nx is the number of moles of water. In the third part of this experiment the enthalpy of dissolution of a salt is calculated with the equation s h = replaced by msolutionc solution t solution lost.