Hot gypsum (242. grams) is placed in 125.0 grams of water (d

Last updated: 7/30/2022

Hot gypsum (242. grams) is placed in 125.0 grams of water (d = 1 g/mL) which was at 21.0°C. What was the initial temperature of the gypsum (in °C) if the final temperature of the water and gypsum together was 29.0°C? Specific heat capacity of gypsum = 1.090 J/(g-K); water = 4.18 J/(g-K). The initial temperature is__ °℃