mbonham481
05.05.2020 •
Chemistry
A compound has the following percent composition: nitrogen (9.66%), hydrogen (2.79%) and iodine (87.6%). What is the empirical formula?
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Ответ:
Explanation:
The given data is as follows.
Density of vinegar = 1.0 g/ml
Specific heat capacity = 4.25
Relation between enthalpy and specific heat is as follows.
Hence, putting the values into the above formula as follows.
=
(as density = 
)
= - 315 J
Thus, we can conclude that the enthalpy of reaction is -315 J.
As the value is negative so, it means that heat is releasing. Hence, the reaction is exothermic in nature.