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Using the technique of the previous problem ?E was found to be -2,000.00 kJ/mol at 298 K for an unknown liquid hydrocarbon. In another experiment it was determined that for each mole of hydrocarbon, 1.6 moles of oxygen gas are consumed and 7 moles of CO2 gas and 5 moles of H2O liquid are produced. Find ?H per mole of this hydrocarbon (in kJ) at 298 K.
A boy receives 10mg of medicine for every kg he weighs. How much medicine should he receive if he weighs 48 pounds and the conversion factor for pounds to kilograms is 1 pound = 0.4536kg.
How many grams of propanol (C3H7OH, 60.10 g/mol) would be needed to make 750 mL of a solution with an osmotic pressure of 25 atm at 25°C? (R = 0.0821 L/atm/K/mol)
The decomposition of N2O to N2 and O2 is a first order reaction. At 730 degrees Celcius the half-life of the reaction is 3.58x10^3 min. If the initioal pressure of N2O is 2.10 atm at 730 degrees Celcius, calculate the total gas pressure after on h..
A piece of metal of mass 22 g at 92C is placed in a calorimeter containing 53.7 g of water at 21C. The final temperature of the mixture is 55.3C. What is the specific heat capacity of the metal?
Obtain from a reference work the solubility of silver acetate at 20 degree C. Usually this will be reported in units of grams per 100 mL of water
The vapor pressures of pure benzene and pure toluene at 25 C are 94.2 torr and 28.4 torr, respectively. Assuming ideal behavior
Rank from longest to shortest distance. To rank the items as equivalent, overlap them.
Using Wien's law, calculate the temperature a star must have for the peak wavelength of its blackbody curve to equal this value.
The solution density = 1.013 g/mL and suppose that the density of pure water =1.00 g/mL. Determine the molality of this solution?
What would the theoretical yield in moles be and how would you calculate that? What would the theoretical yield in grams be and how would you calculate that?
Arsenic Acid (H3AsO4) has Ka values of 2.5*10^-4, 5.6*10^-8, and 3*10^-13. What is the concentration of the HAsO42- dianion in a solution
Sodium carbonate reacts with hydrochloric acid as shown below in an unbalanced chemical equation. What mass of CO2 is produced from the reaction of 2.94g Na2CO3 with excess HCL
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