How much ice at a temperature of -11.0°C must be dropped into the water so that the final temperature of the system will be 31.0°C? Take the specific heat of liquid water to be 4190 J/kg°C, the specific heat of ice to be 2100 J/kg°C, and the heat of fusion for water to be 3.34×10^5 J/kg.
a) 0.185 kg
b) 0.215 kg
c) 0.240 kg
d) 0.275 kg
