Use the interactive to observe the temperature change that results from burning various fuels in a bomb calorimeter. before: 20 C After 1g: 21.9 C After 2g: 23.8 C After 3g: 25.7 C Calculate the fuel value of wood in kilojoules per gram. The heat capacity of the bomb calorimeter is 9.96 kJ/°C. fuel value=              kJ/g

pt pt pt pt pt pt pt pt pt pt pt pt pt pt You should use care when dissolving H₂SO4 in water because the process is highly exothermic. To measure the enthalpy change, 5.8 g of concentrated H₂SO4() was added (with stirring) to 140. g of water in a coffee-cup calorimeter. This resulted in an increase in temperature from 21.0 °C to 30.3 °C. Calculate the enthalpy change for the process H₂SO4(l) → H₂SO4 (aq), in kJ/mol. Assume the specific heat capacity of the solution is 4.2 J/g. K. Enthalpy change = kJ/mol ?

Magnesium metal is added to a coffee cup calorimeter containing 105.0 mL of 2.50 M hydrochloric acid. The temperature increased by 8.2°C. What lesson metal is placed in the calorimeter meter? Look at pic. The heat capacity and density a solution in the calorimeter is the same as those of water: 4.184 J/(g x degrees Celsius ) and 1.00 g/mL. Illinois it change in massive solution caused by adding magnesium and by escape of the hydrogen 

An unknown sample of coal is burned in an apparatus with a calorimeter constant of 0.8 kJ/°C. When a 0.443-g sample is used, the temperature change is 8.61°C. What is the energy density of the sample in kJ/g?

Please answer question 5 part A

Homework Question 1 Timer Notes Evaluate Feedback In Course Contents (GRADED) Homework Questions Material from June 6( The combustion of 4.83 g of butane in a bomb calorimeter with a heat capacity of 10.94 kJ/K results in a rise in temperature from 22.17 °C to 42.21 °C. Calculate the heat of combustion (in kl/g) of the butane Report your answer to three significant figures. 293 J Submit Anew Due in less than 24 hours 5 Previous Tries This discussion is closed. Send Feedback

In a calorimeter, a 2.0 g sample of magnesium is burned to form MgO. In doing so, 25.5 kJ of energy are released. What is the Heat of Combustion in kJ/mol of magnesium? с 306.2 1.54 x 1025 0.0392 514 25.5

Calculate the energy of combustion per gram of Olive Oil (kJ/g) if 29.9 mL of water is placed in the test tube and the temperature changes from 22.9 °C to 44.6 °C. The initial mass of the spirit burner is 204.60 g and the final mass is 204.51g. State your answer with correct significant digits. Notes: Include a negative sign if the reaction is exothermic Do not include units in your answer.

An 87.9 g sample of chromium metal at 99.1°C is placed in a calorimeter containing 100.00 g of water at 21.0°C The contents of the calorimeter come to a temperature of 25.7°C. The heat capacity of water is 4.18 J/(g* °C) a. Is this process exothermic or endothermic? b. Calculate the amount of heat released by the metal (q metal) in Joules. Show your work.