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Use the information provided to calculate the quantity of heat (in kJ) required to convert 76.271...

Use the information provided to calculate the quantity of heat (in kJ) required to convert 76.271 g of substance A from an initial temperature of -7.119ºC to a final temperature of 121.9ºC. Report your answer to the tenths place and do not include units. The molar mass of the substance is 28.93 g/mol.

melting point of A = 1.299ºC     heat of fusion = 10.43 kJ/mol
boiling point of A = 109ºC heat of vaporization = 87.89 kJ/mol

solid. liquid. gas

specific heat (J/gºC): 2.304. 4.221. 6.063

(Correct answer is 301.3, I just need step by step how to solve this)

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