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Calorimetry Application

APCHEM-MLKE4X

The change in enthalpy for sodium hydroxide dissolved in water is -44.4 kJ/mol.

When a 19.9 g sample is dissolved in 500.0 g of 23.0$^o$C water in a coffee-cup calorimeter, what is the final temperature of the system?

Presume the specific heat of the solution is the same as that of liquid water.

A

24.1$^o$C

B

-12.4$^o$C

C

33.6$^o$C

D

-22.1$^o$C