Review Constants Periodic Table Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.025 g o...
Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.025 g of naphthalene is burned in a bomb calorimeter, the temperature rises from 24.25 ∘C to 32.33 ∘C. Find ΔErxn for the combustion of naphthalene. The heat capacity of the calorimeter, determined in a separate experiment, is 5.11kJ/∘C. Express the change in energy in kilojoules per mole to three significant figures.
Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8) . When 1.025 g of naphthalene is burned in a bomb calorimeter, the temperature rises from 24.25 ∘C to 32.33 ∘C . Find ΔErxn for the combustion of naphthalene. The heat capacity of the calorimeter, determined in separate experiment, is 5.11kJ/∘C . ΔErxn =
Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.025 g of naphthalene is burned in a bomb calorimeter, the temperature rises from 24.25C to 32.33 C. Find ΔErxn for the combustion of naphthalene. The heat capacity of the calorimeter, determined in a separate experiment, is 5.11 kJ/C.
3. Mothballs are composed primarily of the hydrocarbon naphthalene (C,H). When 1.25 g naphthalene is burned in a bomb calorimeter, the temperature rises from 25.25 °C to 34.33 °C. (Heat capacity of calorimeter 5.11 kJ/°C). Calculate: a) The heat of reaction per gram of naphthalene b) The heat of reaction per mole of naphthalene Given the following standard enthalpy of formations: AH°, [C,H,OHO --277.7 kJ/mol]; AH [CHCOH) = 484.5 kJ/mol]; AH [HO) = -285.8 kJ/mol]; AH® [0,(g) - 0 kJ/mol].
Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.022 g of naphthalene burns in a bomb calorimeter, the temperature rises from 25.884 ∘C to 31.068 ∘C. (I already found ΔrU is -3323 kJ in Part A ) PART B) Find ΔrH for the combustion of naphthalene at 298 K. Express your answer using four significant figures. 2) How much heat (in kilojoules) is evolved in converting 1.00 mol of steam at 160.0 ∘C to ice at -50.0 ∘C?...
CHE201-71: General Chemistry and Quantitative Analysis I laboratory: Chapter 5 Recitation 1. When 1.025 g of naphthalene (C16H) burns in a bomb calorimeter, the temperature rises from 24.25 °C to 32.33 "C. The heat capacity of the calorimeter is 5.86 kJ/"C. Calculate: a) Gran per mole of naphthalene for the combustion process b) gran per gram of naphthalene for the combustion process Instant cold packs, often used to ice athletic injuries on the field contain ammonium nitrate and water separated...
1. How much heat is needed to raise the temperature of 1.50 g of aluminum metal from 23.2 °C to 30.5 °C? (Specific heat capacity of aluminum is 0.90 J/g-K). 2. Given the following thermochemical equation: DH = -1107 kJ How many kJ of heat are released when 15.75 g of Ba(s) reacts completely with oxygen to form BaO(s)? 3. Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.25 g naphthalene is burned in a bomb calorimeter, the temperature rises from 25.25...
When a 3.80-g sample of liquid octane (C8H18) is burned in a bomb calorimeter, the temperature of the calorimeter rises by 26.5 ∘C. The heat capacity of the calorimeter, measured in a separate experiment, is 6.21 kJ/∘C . You may want to reference (Page 265) Section 6.5 while completing this problem. Part A Determine ΔE for octane combustion in units of kJ/mol octane. Express your answer using three significant figures.
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of water at 11.0 °C. When 250 g of X (a substance with a molar mass of 60.0 g/mol) is added, it dissolves via the reaction X(s) + H2O(1) X(aq) and the temperature of the solution increases to 30.0 °C. Calculate the enthalpy change, AH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that...