q = mass fluid x specific heat fluid x (Tfinal-Tinitial)
Most of these problems are worked WITHOUT including the mass of the dissolved solid; however, if we use as the mass of the fluid 20 + 3 g = 23 I obtain the 13.3 kJ/mol.
When 3.00 g potassium carbonate (K2CO3 ) was mixed with 20.0 mL of hydrochloric acid (HCl, 4.0M) in a calorimeter, the temperature raised 3.0 degrees Celsius.
B. Calculate the enthalpy change (H) of the reaction for per mole patassium carbonate. Assume the specific heat of all solutions are 4.18 J/g.oC and all solutions have a density =1.0 g/mL. (A:-13.3 kJ)
I do not how to get the answer.
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