A jar of tea is placed in sunlight until it reaches an equilibrium temperature of 33.8°C. In an attempt to cool the liquid, which has a mass of 168 g, 140 g of ice at 0.0°C is added. At the time at which the temperature of the tea is 29°C, find the mass of the remaining ice in the jar. The specific heat of water is 4186 J/kg. C. Assume the specific heat capacity of the tea to be that of pure liquid water.