Your 300 mL cup of coffee is too hot to drink when served at 90 degrees C. What is the mass of an ice cube, taken from a -20 degree C freezer, that will cool your coffee to 60 degrees C?
The Attempt at a Solution
I'm pretty sure I can do this problem, but the only thing I am unsure of is what the specific heat of the coffee is. Should I assume that is the same as that of liquid water? Thanks