7.56 g of lithium iodide (4 H = -63.3 kJ/mol) is placed into 175 mL of...
A hot lump of 35.9 g of aluminum at an initial temperature of 63.3 °C is placed in 50.0 mL H2O initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final temperature of the aluminum and water, given that the specific heat of aluminum is 0.903 J/(g·°C)? Assume no heat is lost to surroundings.
4. A hot lump of 44.5 g of copper at an initial temperature of 60.7°C is placed in 50.0 mL H20 initially at 25.0°C and allowed to reach thermal equilibrium. What is the final temperature of the copper and water, given that the specific heat of copper is 0.385J/gºC and the specific heat of water is 4.184 J/gºC? a. 23.7°C c. 27.7°C b. 25.7°C d. 29.7°C
A hot lump of 32.3 g of copper at an initial temperature of 96.5°C is placed in 50.0 mL H2O initially at 25.0°C and allowed to reach thermal equilibrium. What is the final temperature of the copper and water given that the specific heat of copper is 0.385J/g°C and the specific heat of water is 4.184J/g°C? 4. A hot lump of 32.3 g of copper at an initial temperature of 96.5°C is placed in 50.0 mL H20 initially at 25.0°C...
A hot lump of 35.6 g of copper at an initial temperature of 86.3 C is placed in 50.0 mL initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final temperature of the copper and water, given that the specific heat of copper is 0.385 J/(gxC). Assume no heat is lost to surroundings.
16.41 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.7°C. Calculate ∆H, in kJ/mol, for the dissolution of MgSO₄. (The specific heat of water is 4.18 J/g・°C and the density of the water is 1.00 g/mL). You can assume that the specific heat of the solution is the same as that of water.
4. 100.0 mL of water is placed in a calorimeter and allowed to reach an initial temperature of 23°C. A 45.0g block of Cu (SH=0.385 J/g at 285°C is placed in the water (SH = 4.18 J/g. C) in the calorimeter. a) If the final temperature reached is 30°C, determine the heat capacity of the calorimeter? b) The same calorimeter was used to determine the heat of solution of 20.0g of NH4NO3 NH4NO3 (s) + NH4NO3 (29) The initial temperature...
Thermodynamics 1) The enthalpy of vaporization of water ∆H = -25 kJ mol-1 at T = 45 °C. When water V = 15 cm3 in an open vessel evaporates at this temperature, calculate the change in entropy of the surroundings. 2) For a given reaction, ∆H = 25 kJ and ∆S = 50 J/K. Above what temperature will this reaction occur spontaneously? 3) At T = 15°C a certain protein denatures reversibly with ∆H = 30 kJ/mol. The system is...
Please let me know the answer and why. Thank You! 41.0 g of KCl is dissolved into 100 mL of water at 25°C and constant pressure in a constant pressure calorimeter. What is the temperature of the final solution after the solid is completely dissolved? Assume (= 4.18 J/gºC for the solution. The density of water is 1 g/mL. KCI (aq) K (aq) + C1- (aq) AH = +17.2 kJ/mol A) 7.01 °C B) 11.4 °C 0 C) 10.1 °C...
Question 29 of 50 Submit 5.21 g of MgSO4 is placed into 100.0 mL of water. The water's temperature increases by 6.70°C. Calculate AH, in kJ/mol, for the dissolution of MgSO4 (The spe- cific heat of water is 4.18 J/g. *C and the density of the water is 1.00 g/mL). You can assume that the specific heat of the solution is the same as that of water. kJ/mol 1 2 3 C +/- : 0 x 100
A hot lump of 30.9 g of iron at an initial temperature of 86.4 °C is placed in 50.0 mL H, initially at 25.0 °C and allowed to reach thermal equilibrium. What is the final temperature of the iron and water, given that the specific heat of iron is 0.449 J/(g.°C)? Assume no heat is lost to surroundings.