A piece of glass has a temperature of 80.0 °C. Liquid that has a temperature of 39.0 °C is poured over the glass, completely covering it, and the temperature at equilibrium is 58.0°C. The mass of the liquid and the glass is equal. Ignoring the container that holds the liquid and glass and assuming that the heat lost to or gained from the surroundings is negligible, the specific heat capacity of the liquid is.