Question

RADHIS 7 of Review Constants Periodic Part A In the folowing experiment, a coffee-cup calorimeter containing 100 ml of H,O is used. The inbial temperahure of the calorimater is 23 0 C if 8.00 g of CaCly is added to the calorimeter, what will be the inal temporature of the solution in the calorimeter? The heat of solution AH of CaClh is-82.8 kJ /mol Assume that the specific heat of the solution formed in the calorimeter is the same as that for pure water C 4.184 J/s "C. Express your answer with the appropriate units. View Available Hint(s) A Units Value Submit Next Provide Feedback 7 AM aa A

Answer 1

vol of H2O = 100 me Mass of H20 = Mw = 100 me x iglme A = 100g TH2O = 4.104 Ilgoc = ੨ਤ c Alsoin = – 82.8 kil mole in+ + चार = 3। ho. of mole of eache= 8,0 hole 11o.go = 0107209 mole a soin = – 4Hsoin x no. of mole of Catia = 82. xo.07200 Esoin = 5.958 643 KJ = 59 60.5435 = mor x tw X OT - 100g xullou Jlgoc xaT = 5968543 at = 5958.543 14.2654°c 418.4 To= 14.2554°c +23100 = 37.2654°c 37.25°C