Q = mc?T
Q = heat energy (Joules, J), m = mass of a substance (kg)
c = specific heat (units J/kg?K), ? is a symbol meaning "the change in"
?T = change in temperature (Kelvins, K)
Total heat = heat gained by water + Heat gained by calorimeter
heat gained by water = 1000 x 4.184 x 5 = 20920 Joules
Heat gained by calorimeter = 5 x 0.1 x 103 = 500 Joules
Total heat = 20920 + 500 = 21420 Joules or 21.4 Kilo Joules
A 4.1-g sample of Colorado oil shale is burned in a bomb calorimeter, which causes the...
A 1.20-g sample of maleic acid (C4H4O4) is burned in a bomb calorimeter and the temperature increases from 24.70 °C to 27.41 °C. The calorimeter contains 1000 g of water and the bomb has a heat capacity of 839 J/°C. The heat capacity of water is 4.184 J g-1°C-1. Based on this experiment, calculate ΔE for the combustion reaction per mole of maleic acid burned.
5. (10 points) A 2.20 g sample of fructose (CoH12Os) is burned in a bomb calorimeter containing 1350 g water at an initial temperature of 21.00 °c. After the reaction the temperature of the water is 23.52 °C. The heat capacity of the bomb is 450 J/°C. The specific heat capacity of water is 4.184 J/g. C. Calculate the quantity of heat released per mole of fructose in kJlmol.
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.
A 0.559-g sample of 9,10-anthracenedione (C14H302) is burned in a bomb calorimeter and the temperature increases from 24.50 °C to 27.50 °C The calorimeter contains 1.15x10g of water and the bomb has a heat capacity of 876J/°C. Based on this experiment, calculate AE for the combustion reaction per mole of 9,10-anthracenedione burned (kJ/mol). C14H2O2() + 15 O2(g)— 14 CO2(g) + 4H2O(1) E k J/mol
A 17.5g sample of a candy bar is burned in a bomb calorimeter. which has a heat capacity of 8.75 kJ/degrees C. The temperature increases from 20.2 degrees C to 59.9 degrees C 03 Question (5 points) See page 413 A 17.5 g sample of a candy bar is burned in a bomb calorimeter, which has a heat capacity of 8.75 kJ/°C. The temperature increases from 20.2°C to 59.9°C. 1st attempt Part 1 (2.5 pts) M See Periodic Table O...
When 0.187 g of benzene, C6H6, is burned in a bomb calorimeter, the temperature of both the water and the calorimeter rises by 4.53 ∘C. Assuming that the bath contains 250.0 g of water and that the heat capacity for the calorimeter is 525 J/∘C , calculate the combustion energy (ΔE) for benzene in kilojoules per gram.
When 0.187 g of toluene, C7H8, is burned in a bomb calorimeter, the temperature of both the water and the calorimeter rises by 4.83 ∘C. Assuming that the bath contains 250.0 g of water and that the heat capacity for the calorimeter is 525 J/∘C, calculate the combustion energy (ΔE) for toluene in kilojoules per gram.
A 0.375-g sample of 2-naphthylacetic acid (C12H1002) is burned in a bomb calorimeter and the temperature increases from 25.80 °C to 28.00 °C. The calorimeter contains 1.06x103 g of water and the bomb has a heat capacity of 903 J/°C. Based on this experiment, calculate AE for the combustion reaction per mole of 2-naphthylacetic acid burned (kJ/mol). C12H1002()+27/2 O2(g) —>12 CO2(g) +5 H2O(1) AE = kJ/mol
A 3.250 g sample of methanol, CH_3OH, is combusted in a bomb calorimeter. The temperature of the calorimeter increases by 12.55 degree C. If the heat capacity of the bomb is 8500 J/degree C and it contains 1.200 kg of water, what is the heat evolved per mole of ethanol combusted? The specific heat capacity of water is 4.184 J/g middot K and the molar mass of methanol is 32.04 g/mol. -1321 kJ -726.4 kJ -621.2 kJ -105.2 kJ -63.01...
A 1.800-g sample of solid phenol (C6H5OH(s)) was burned in a bomb calorimeter, which has a total heat capacity of 11.66 kJ/∘C. The temperature of the calorimeter plus its contents increased from 21.36∘C to 26.37∘C. A. Write a balanced chemical equation for the reaction that takes place in the bomb calorimeter. Express you answer as a chemical equation including phases. B. What is the heat of combustion per gram of phenol? Express the heat in kilojoules per gram to three...