URGENT HELP NEEDED. PLEASE HELP ASAP.

In the winter, it is nice to light a fire when you are on a trip. How much snow can be melted with hot stones from the fire? We do the following experiment: Hot granite stones are placed in an insulated and waterproof container. The mass of the stones is 4.3 kg and they have a temperature of 230 degrees. Specific heat capacity for granite is 840 J / kg. We have ample access to snow with a temperature of -5 degrees C. We put snow over the stones, and fill up as long as there is residual heat in the stones. Finally, we end up with liquid water and rocks, where the temperature is 0 degrees C. Use that the specific heat capacity of ice is 2050 J / kg x K and that the specific heat of fusion is 334 kJ / kg. Assume that there is no heat loss to the surroundings. How many kg of snow were melted?

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