Question #249801

When 5.73 g of sodium chloride (NaCl) dissolves in 100 cm3 of water, the temperature of the water fell from 22.4 oC to 19.8 oC. Calculate the enthalpy change of the reaction.



1
Expert's answer
2021-10-12T02:05:58-0400

∆H = m x s x ∆T

= 5.73× 100×(22.4-19.8)

= 1489.8J/mol


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