Figure 1.01a: (a.)The surface of a single grain of table salt.

CRS Question, 6–17

ANSWER

Choice 3 is correct. The heat released per mole must be converted to heat released for 0.500 0 gram (.500 0/12.01) ´ –393.5. This should be divided by the number of degrees the calorimeter registered and the sign changed to be positive.

Section 6.2: Enthalpy and Calorimetry