Question: please help explain! Mass of solid solute (KCI) transferred 4.977g Total Mass of Solution - 49.162g Temperature Change for Solution- -5.2C qliq( Keep two or


please help explain!
Mass of solid solute (KCI) transferred 4.977g
Total Mass of Solution - 49.162g
Temperature Change for Solution- -5.2C qliq( Keep two or more extra digits) - -1069.61J
Accepted value (from CRC Handbook) 17.22 kJ/mol
Need help figure out the rest of the problem qcalorimeter qliq, corrected qSolute, corrected Molar hear of Solutions of KCI, corrected (kJ/mol)
percent difference
Heat of Solution of KCl DATA Trial 1 Trial 2 RESULTS OF CALCULATIONS Mass of water* Mass of solid solute transferred* Total mass of solution * Temperature change for solution* qliq (Keep two or more extra digits.) 1069.61kJ=1068.9kJ qsolute (Keep two or more extra digits.) =1069.61k5=1068.9k5 Molar heat of solution of KCl(kJ/mol)16.02k15.9k5 (Keep one extra digit.) Average molar heat of solution of KCl Accepted value (from CRC Handbook) Percent difference* 1.93010 *Correct sig figs required. Incorporating the heat capacity of the calorimeter into the calculation of the molar heat of solution of KCl Since the lid of the calorimeter is not insulated, it is reasonable to suspect that the calorimeter is allowing some heat to escape. Also, the calorimeter itself has a heat capacity which we ignored in the results of calculations recorded on the previous page. We have found that the calorimeters behave, on average, as if they have a heat capacity of 34J/K. A more realistic value for the molar heat of solution may be obtained if this average heat capacity of the calorimeter is included: qliq,corrected=qliq+qcalorimeterwhereqcalorimeter=34KJTqsolute,corrected=qliqlcorrected Using your data from Trial 1, complete the following: Mass of solid solute (KCl) transferred Total mass of solution Temperature change for solution qliq (Keep two or more extra digits.) qcalorimeter (Use the equation on this page.) qliq, corrected (Keep two or more extra digits.) qsolute, corrected (Keep two or more extra digits.) Molar heat of solution of KCl, corrected (kJ/mol) Accepted value (from CRC Handbook) Percent difference* * Correct sig figs required
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