Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics in humans. The value of ΔHcomb for dimethylphthalate (C10H10O4) is –4685 kJ/mol. Assume 0.900 g of dimethylphthalate is combusted in a calorimeter whose heat capacity (Ccalorimeter) is 6.65 kJ/°C at 20.5 °C. What is the final temperature of the calorimeter?

Question

Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics in humans. The value of ΔHcomb for dimethylphthalate (C10H10O4) is –4685 kJ/mol. Assume 0.900  g of dimethylphthalate is combusted in a calorimeter whose heat capacity (Ccalorimeter) is 6.65  kJ/°C at 20.5 °C. What is the final temperature of the calorimeter?