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When 5.00 g of fructose, C6H12O6, (FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
Water is placed into a calorimeter. when 1 gram of an ionic solid is added, the temperature of the solution increases from 21.5 C to 24.2 C as the solid dissolves.
The combustion of butane produces heat according to the equation 2C4H10(g) + 13O2(g) -> 8CO2(g) + 10H2O(l) ->H°rxn = -5,314 kJ/mol What is the heat of combustion per gram of butane
Calculate the pH during the titration of 100.0 mL of 0.200 M HCl with 0.400 M NaOH. First what is the initial pH (before any NaOH is added
Which one of these equations describes a redox reaction?
consider radiation of wavelength of 8000 Angestroms, at a temprature of 1000 K. using a planck law, calculate the energy per unit volume
What is the radius of the cross section of a cylinder that has a volume of 644.0 m3 and a height of 12.6 m? (Volume=πr2×height)?
The gas receives 525 J of heat from its surroundings and does 428 J of work. What is its final internal energy?
Write the equation for the reaction that occurs when Zn is placed in a 1M HCl solution, and determine the net EMF for the reaction.
A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25 Celcius. The concentration of Cu2+ in one of the half cells is 1.5 * 10-3 M. what is the concentration of Cu2+ in the other half cell?
If all of the electron groups around a single central atom are bonding, and the same outer atom is bonded to the central atom in each case, is the molecule polar, nonpolar, or does it depend on the identity
A particular compound contains, by mass, 41.4g carbon, 3.47g hydrogen, and 55.1g oxygen a 0.100 mol sample of this compound weights 11.60 g.
The normal boiling point of acetone is 56.5°C. At an elevation of 5300 ft the atmospheric pressure is 630. torr.a. What would be the boiling point of acetone (AHvap = 32.0 kJ/mol) at this elevation?
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