HQ11.30 Homework Answered When 0.1625 g of magnesium is burned in a bomb calorimeter that has...
A 0.2075−g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 3024 J/°C. The temperature increases by 1.700°C. (a) Calculate the heat given off by the burning Mg in kJ/g. kJ/g (b) Calculate the heat given off by the burning Mg in kJ/mol. kJ/mol
A 0.1785 g sample of magnesium was burned in an oxygen bomb calorimeter. The total heat capacity of the calorimeter plus water was 5,760 J/C. If the temperature rise of the calorimeter with water was 1.25*C, calculate the enthalpy of combustion(in kJ/mol) of magnesium. Mg(s) + 1/2O2(g) -> MgO(s) Write answer to three significant figures. Numeric Response
10. A bomb calorimeter has a heat capacity of 3.03 kJ/C. when 20 grams of sodium are burned inside, the temperature increases by 2.03 °C. Calculate the energy change (in kJ/mol) by burning this amount of sodium? &196 males x molei of
Be sure to answer all parts. A 0.4275 g sample of solid magnesium is burned in a constant volume bomb calorimeter that has a heat capacity of 3024 J/°C. The temperature increases by 3.499°C. (a) Calculate the heat associated with the burning Mg in kJ/g. kJ/g (b) Calculate the heat associated with the burning of Mg in kJ/mol. kJ/mol
Be sure to answer all parts. A 0.4875−g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 3024 J/°C. The temperature increases by 3.991°C. (a) Calculate the heat given off by the burning Mg in kJ/g. kJ/g (b) Calculate the heat given off by the burning Mg in kJ/mol. kJ/mol
When 1.986 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63°C. If the heat capacity of the calorimeter is 4.900 kJ/°C, what is the heat of combustion of sucrose?
When 0.0801 mol of an unknown hydrocarbon is burned in a bomb calorimeter, the calorimeter increases in temperature by 2.19°C. If the heat capacity of the bomb calorimeter is 1.229 kJ/°C, what is the heat of combustion for the unknown hydrocarbon?
When a 3.08 g sample of liquid octane (C8H18) is burned in a bomb calorimeter, the temperature of the calorimeter rises by 26.9 oC. The heat capacity of the calorimeter, measured in a separate experiment, is 6.22 kJ/∘C . The calorimeter also contains 3.00 kg of water, specific heat capacity of 4.18 J/g°C. Determine the heat of combustion of octane in units of kJ/mol octane.
When 1.151 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63 °C. If the heat capacity of the calorimeter is 4.900 kJ/°C, what is the heat of combustion of sucrose?
A 4.1-g sample of Colorado oil shale is burned in a bomb calorimeter, which causes the temperature of the calorimeter to increase by 5.0 °C. The calorimeter contains 1.00 kg of water (specific heat of water 4.184 J/g°C) and the heat capacity of the empty calorimeter is 0.10 kJ/°C. How much heat is released per gram of oil shale when it is burned? 21 kJ/g 0 kJ/g 0.19 kJ/g 42 kJ/g 5.2 kJ/g