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Enthalpy Change (AH) in kl/mol Please complete this worksheet and submit it to your instructor before leaving lob. Show all work. 1. Use the data collected in Part 1 to calculate the following: Mol of NaOH Heat produced (a) in kl MOSS OF NOOH Dewets 100.5759 X0,00 397) AH = heat of solution molar mass NAOH - 2.0529 +0.0513 = (0.3992 kJ 0.3992 %) 10-05 13 more more = 7.78 kJ/mole NAOH more of NAOH 40.0 g/mol 2. Use the data collected in Part 2 to calculate the following: Mol of Limiting Reactant Heat produced (9) inkl 50 ml NaOHX 2 M q=1m x Sx0+) NOOH q=103.902 X 3.98*13) 1000 9-5375.885 0.1 mol Nacht a =(5.37 kJ Enthalpy Change (AH) in kl/mol AH= 5.37 kJ/O. 1 mole 53.7 kj/mole 5 3. Use the data collected in Part 3 to calculate the following: Mol of Limiting Reactant Heat produced (q) in kJ Mass of NOOH Pellets 101.7649 X 0.00 399 KT Motor mass NaOH = 0.4060 KJ 2.115 g = 0.0528 40.0g/mol mole Enthalpy Change (AM) in kJ/mol AH = 0.4060 10.0528 = 17.69 kJ/mole) ) NooH 4. Comparison of AH values a. What was your expectation regarding the sum of the AHs for Parts 1 and 2 compared to the AH for Part 3? Explain the reason for your expectation
Part 1 - The Molar Heat solution of sodium Hydroxide Specific heat of Sowtion MASS ove empty calorimerer with Hd Carams) 391 39°C 65.205 g Moss Of NaOH pellets (grams 12.052 g Initial water tempexature (°C) 21.6°C Final Solution temperature (c) 25.9°C Temperature change (Ac) Mass of Calorimeter and solution [grams) 165.813 of Mass Of Solution in grams) 4.305 100.575 part 2- The molar Heat of Neutralization Molarity of HCI 12.1 M Molarity Of NaOH specific heat of Solution 2-0 M MOSS OR empty calorimeter with lids i gram 3) 3.013 7 9°C Vowme Of NOOH Solution (ml) 65.298 8 som Volume of HCl Solution (m) Initial Solution temperature (°C) soom 22. 4 oC Final Solution temperature tc.) 25.4°C Temperature change (A°C) 13°C MOSS OR Calorimeter and solution (grams) 169.2009 Mass OP Solution grams 103.902g part 3 The Molar Heat of Reaction Molarity of HCl Specific Heat Of Solution 3.940/900 Mass of empty Calorimeter with lid Cgrams) 165.2939 Mass OR NOolt pellets (Arame> 2.13 OK volume of HC Solution (ml) 1000ml Initial temperature OR HCI (°C 123.2 nowoc Final Solution temperature (°C) 33.0°C Temperature change (A°C) MaSS OR Cortermeter and solution (grams) 1067.057 g 1101.7648 Mass solution (9. rams) DF 1 2990