Calculate the amount (mass) of acetic acid (C2H4O2, molar mass = 60.052 g mol-1) that causes a bomb calorimeter with a heat capacity of 8.43 kJ °C-1 to have a temperature increase from 24.5 °C to 36.8 °C. The rU for the combustion of acetic acid is -874.2 kJ mol-1.
A) 6.18 g
B) 7.12 g
C) 2.18 g
D) 9.66 g
E) 8.68 g
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