Question

Part A before mong and 34C er mang. The best capacity of the A 50.0 mL sample of a 100 M solution of C o m e with 50.0 mL of 200 M ROH in a calorimeterThe temperature of both solutions was 209" calorimeter is 121JX From these da culate H for the process CuSO (IM) + 2KOR (2) Cu(OH),(-) + K 80.(0.5M) Assume that the specific heat and density of the solution after wing are the same as those of pure water and that the volumes are additive 180 AE ROBI?

Answer 1

mo 0.05 1000 TO + 2 Kon mole of cusoy - 50x1=005 mole of KoH = 50x2 = 0.1 Cusou + 2 kon Culona & K2504 Total volume after mixing = Looml density of water = d solution - Iglme. mass of water = 100 x1 = loog Heat Capacity of water = 4.18 ] 19°C Total heat = SDT + CDT solution Calorimeter

Heat - 100 x Y. 18+ (34.18 - 20.9) + 12 1x (34.120.9) - 5677.3 Joule = 5.67 kJ for 0.05 mole, heat = 5.677k] I mole, heat,DH = 5.677 = 113.54 kg/mol 0.05 DH = -113.54 kJ/mol