Hello, Kelly,
The heat of fusion of water is the energy involved in going from solid to liquid, with no temperature change. It reveals the intramolecular forces holding the water molecules together as a solid. We must assume no temperature change, so the ice is at 0 C and the water will be the same.
The unit Hf =334 J/g. We have 27.0 grams of ice, so you can see that multiplying that by 334 J/g we'll be left with just Joules. This amounts to 9,018 J. (9,020 to 3 sig figs). Also can be expressed in kilojoules (9.02 kJ). This the amount of energy absorbed by the ice to make it melt. Hopefully it came from your warm soft drink.
Bob
