Acalorimeter contains 500 g of water at 25°c. you place a hand warmer containing 100 g of liquid sodium acetate (naac) inside the calorimeter. when the sodium acetate finishes crystallizing, the temperature of the water inside the calorimeter is 32.2°c. the specific heat of water is
4.18 j/g-°c. what is the enthalpy of fusion (δhf) of the sodium acetate? show your work.

The enthalpy of fusion of the sodium acetate is 12.344 kJ/mol.

Explanation:

Heat absorbed by the water: Q

Change in temperature of water,

Specific heat of water = 4.18 J/g°C

Mass of water = m= 500 g

is the heat energy required to melt the one mole of substance.

When 200 g of sodium acetate crystallizes it gave 15,048 Joules of heat which was absorbed by the water in calorimeter.

Moles of NaAC=

The enthalpy of fusion of the sodium acetate is 12.344 kJ/mol.

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