Phthalates used as plasticizers in rubber and plastic products are believed to a

Question

Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone in humans. The value of Delta H for dimethylphthalate (C_10H_10O_4) is 4685 kJ/mol. Assume 1.00 g of dimethylphthalate is combusted in a calorimeter whose hear capacity is 7.854 kJ/degree C at 20.215 degree C. What is the final temperature of the calorimeter? Which of the following were you given in the original question? A. Heat of combustion for dimethylphthalate B. Initial temperature of the calorimeter C. Molecular weight of dimethylphthalate D. Calorimeter constant E. Final temperature of the calorimeter F. Chemical formula of dimethylphthalate

Explanation / Answer

a) heat of combustion is given as Hcomb = 4685 kJ/mol

b) also correct, it is given at T = 20.215°C

c) the molar mass of Dimthylphthalate is NOT given

d) caolrimeter constant is given as Ccalorimeter = 7.854 kJ/C

e) Final T of calorimeter is NOT given

f) chemical formula of Dimthylphthalate is given as C10H10O4

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