If 45.0mL of ethanol (density = 0.789g/mL) initially at 9.0C is mixed with 45.0mL of water (density = 1.0g/mL) initially at 28.0C in an insulated beaker, what is the final temperature of the mixture, assuming that no heat is lost? ( CEtOH=2.42J/(g⋅∘C). ) Express the temperature in degrees Celsius to three significant figures.