Posted by Ben on Monday, September 10, 2012 at 5:15pm.
You have three sources of heat in and heat out.
1. heat to melt ice +
2. heat to raise T of melted ice to final T -
3. heat lost from 120g H2O
#1 + #2 + #3 = 0
(mass ice x heat fusion) + [mass melted ice x specific heat melted ice (H2O) x (Tfinal-Tinitial)] + [mass water already there x specific heat H2O x (Tfinal-Tinitial)] = 0
Substitute and solve for Tfinal.
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