Posted by Nancy on Sunday, December 9, 2012 at 10:16pm.
q1 = heat to raise T of ice from -14.0 C to zero C.
q1 = mass ice x heat capacity ice x (Tf-Ti) where Tf is 0 and Ti = -14.
q2 = heat to melt ice
q2 = mass iced x heat fusion.
q3 = heat to raise T of melted ice from zero C to Tfinal.
q3 = mass melted H2O x specific heat H2O x (Tf - Ti) where Tf is the unknown and Ti = 0
q4 = heat released by warm water at 81.0C dropping to Tfinal.
q1 + q2 + q3 + q4 = 0.
Substitute and solve for Tf. Post you work if you get stuck.
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