Problem: A glass vial containing a .016kg sample of an enzyme is cooled in an ice bath. The bath contains water and .12kg of ice. The sample has specific heat capacity 2250 J/kg k; the glass vial has mass .006kg and specific heat capacity 2800 J/kg K. How much ice melts in cooling the enzyme sample from 19.5 C to the temp of the ice bath? My work thus far: (initial approach may be what I am finding trouble with...) Qh2o = .12kg (4190J/kg K)(19.6 - 0 C) Qenz = .016(2250)(19.6 - 0 C ) Qvial = .006(2800)(19.6 - 0 C) I believe this problem may involve latent heat but I am stuck as to where to go from here to find the mass of the ice that melted. Any help would would be much appreciated.