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The amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. If all the energy obtained from burning 1.29 pounds of propane (fuel value is 11.09 kcal/g) is used to heat 124.5 kg of water at an initial temperature of 21.5 °C, what is the final temperature?
A 0.1000 m aqueous solution of a weak acid, HA, is 1.5% ionized. At what temperature does it freeze? Kf for water = 1.86°C/m.
calculate the change internal energy (E) for a system that is giving off 45.0kJ of heat and is performing 855J of work on the surroundings.
Cocaine overdose and addiction are major public health problems. One novel treatment involves the administration of high activity mutants of human butyrylcholinesterase (BChE) (i.e. this would be a protein-based ‘drug') that would hydrolyze and d..
Draw viable Lewis structures to illustrate how the element bromine can take part in an ionic bond, a pure covalent bond, and a polar covalent bond.
The excess is titrated with standard 0.101 M KSCN solution, requiring 2.38 mL to reach the red Fe(SCN)2+ endpoint. Calculate the concentration of chloride in the brine in g/L
The individual standard electrode potentials do not indicate anything about tendency to gain electrons. The cell potential of the entire cell does.
Calculate the molarity of a solution of glycerol made by dissolving 66.000 mL glycerol at 15 ^circ {rm C} in enough water to make 400.00 mL of solution.
What mass of silver chloride can be produced from 1.70 L of a 0.177M solution of silver nitrate.
Explain this different physical state behavior in terms of chemical structure and secondary intermolecular bonding.
refer to the given equation as 4NH3(g) + 7O2(g) = 4NO2(g) + 6H2O(g) How many moles of ammonia will be required to produce 13.8 mol of water.
A 1.90 mole quantity of NOCl was initially in a 1.50 L reaction chamber at 400°C. After equilibrium was established, it was found that 36.0 percent of the NOCl had dissociated.
A chemistry graduate student is designing a pressure vessel for an experiment. The vessel will contain gases at pressures up to 210.0 MPa.
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