CHM 101L M4 Fundamentals of Calorimetry Lab Report Complete

2 1. Create a spreadsheet and graph of the data from Data Table 1, plotting temperature vs. time, and use the Y intercept to find the temperature at time 0 when the two volumes of water are mixed. a. Insert graph below. b. Activities 2 and 3 Data Table 2 5g CaCl 2 10g CaCl 2 15g CaCl 2 5g NH 4 Cl 10g NH 4 Cl 15g NH 4 Cl Mass of water (g) 100 100 100 100 100 100 Mass of salt (g) 5.03 10.06 15.1 5 10.02 15.05 Moles of salt (g x mol/g) 0.045 0.089 0.14 0.045 0.090 0.14 Initial Temperature (°C) T i 30 27 31 30 29 31 Final Temperature (°C) T f 32 30 33 32 30 32 Change in Temperature (°C) ∆T = T f - T i 2 3 2 2 1 1 Heat absorbed by 836 1254 836 836 418 418 © 2016 Carolina Biological Supply Company