Question

A 5.09-g sample of solid silver reacted in excess chlorine gas to give a 6.76-g sample of pure solid AgCl. The heat given off in this reaction was 6.00kJ at constant pressure. Given this information, what is the enthalpy of formation of AgCl(s)?
A) -127 kJ/mol
B) -63.6 kJ/mol
C) 127 kJ/mol
D) -6.00 kJ/mol
E) 6.00 kJ/mol

Answer

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