Convert kj to kj mol
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Jun 01, 2012 · Convert the following to kJ/g or kJ/mol. Hexane: 48.2 kJ/g . 4145 kJ/mol. Butane: 49.3 kJ/g . 2859 kJ/mol. Octane: 5450 kJ/mol . 47.8 kJ/g. Methane: 890 kJ/mol . 55.6 kJ/g. Copper has a heat capacity of 0.385 J/g°C. A 10 foot long copper pipe that has a mass of 15,000 g absorbs 500 kJ of heat energy. How much does the temperature of the pipe rise?
[DOC File]1 - Andrew Michaelson
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13. Running downhill. Glycolysis is a series of 10 linked reactions that convert one molecule of glucose into two molecules of pyruvate with the concomitant synthesis of two molecules of ATP (Chapter 16). The ΔG°′ for this set of reactions is -8.5 kcal mol-1 (-35.6 kJ mol-1), whereas the ΔG is -18.3 kcal mol-1 (-76.6 kJ mol …
[DOC File]WPHS Chemistry
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The value of ∆H =-221 kJ/mol. (You will need to write the balanced chemical equation. How many grams of magnesium will be made if 365-kJ is released? How much energy will be released if 9.45-g of magnesium reacts? Ammonium sulfate reacts with barium hydroxide endothermically. ∆H = + 127 kJ/mol.
Chapter 9: Chemical Bonding I: Basic Concepts
The heat capacity of liquid water is 4.18 J/g·°C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67°C into 1.00 g of steam at 100°C? A) 22.7 kJ B) 40.8 kJ C) 2.2 kJ D) 2,400 J E) 40.8 J. Ans: D . 18. Use the graph of vapor pressure to determine the normal boiling ...
Chapter 9: Chemical Bonding I: Basic Concepts
The heat capacity of liquid water is 4.18 J/g·°C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67°C into 1.00 g of steam at 100°C? A) 22.7 kJ B) 40.8 kJ C) 2.2 kJ D) 2,400 J E) 40.8 J. Ans: D Category: Medium Section: 11.8 ...
[DOC File]1) Calculate the kinetic energy in J of an electron moving at
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37) The ΔH for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol. When a 13.9-g sample of NaOH dissolves in 250.0 g of water in a coffee-cup calorimeter, the temperature increases from 23.0 °C to __________ °C.
[DOC File]DETERMINATION OF ENTHALPY CHANGES
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To convert J to kJ, just divide by 1000. Step 4 – Write down the equation together with the enthalpy change in kJ mol-1. Mg(s) + CuSO4(aq) → MgSO4(aq) + Cu(s) H = -94.05 kJ mol-1. If you always follow this method, and get loads of practice before your exams, you will be fine! Practice questions.
[DOC File]Productivity Calculations SOLUTIONS
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consumption? Assume 1 kg of carbon produces 10,000 kJ. 5 kg C/ m2-year * 10,000 kJ / kg C = 50,000 kJ/m2-year . Imagine we run an experiment on the algae Cladophora glomerata. We place equal amounts of algae into a light bottle and a dark (covered) bottle. We measure the dissolved oxygen in both bottles and find it is at 10 mg/L.
[DOC File]Chapters 4-6 review problems
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The heat of vaporization of benzene, C6H6, is 30.8 kJ/mol at its boiling point of 80.1 C. How much heat is required to vaporize 128 g benzene at its boiling point? a. 4.04 kJ b. 18.8 kJ c. 19.3 kJ d. 50.5 kJ e. 4.04 103 kJ ____ 25. The thermochemical equation for the combustion of hexane is shown below.
[DOC File]Weebly
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10. Calculate the molar heat of vaporization of a substance given that 0.43 moles of the substance absorbs 36.5 kJ of energy when it is vaporized. (85 kJ/mol) 11. Given that a substance has a molar mass of 259.0 g/mol and 71.8 grams of the substance absorbs 4.307 kJ when it melts, calculate the molar heat of fusion for this substance. (15.5 kJ ...
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