How much heat is required to raise 250.0 g of ice at a temperature -15.0°C to 105.0°C?
We ain't got the necessary data........
We have to supply enuff heat to...
You have supplied none of the data required, the specific heats of ice, water, and steam; the phase transition data. If you can't be bothered to supply the appropriate data, why should we bother to answer your question?