Ice at 00C  is placed in a Styrofoam cup containing 0.32 kg of lemonade at 270C . The specific heat capacity of the lemonade is virtually the same as that of water, c = 4186 J/kg 0C. After the ice and lemonade reached the equilibrium temperature, some ice still remains. The latent heat of fusion for water is Lf = 3.35 x105 J/kg. Assume that the mass of the cup is so small that it absorbs a negligible amount of heat, and ignore any heat lost to the surroundings. Determine the mass of ice that has melted.

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