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Three common hydrocarbons that contain four carbons are listed here, along with their standard enthalpies of formation:
C4H6(g) 111.9 kJ/molC4H8(g) 1.2 kJ/molC4H10(g) -124. kJ/mol
For each substance, calculate the molar enthalpy of combustion to CO2(g) and H20(l) and fuel value in kJ/g for each compound.
write the equation for self-ionization of water and why ammonia is a weak base.
scuba divers has a volume of 8.0 L and a pressure of 140 atm at 20 degrees C. What is the volume of air in the tank in liters at STP?
Titration of 80 ml of unknown concentration of H3PO4 requires 126ml of 0.128M KOH. What is the concentration of H3PO4?
For each of the following reactions, balance reaction, determine the number of electrons transferred in the reaction, and write the equilibrium constant
how many ml of concentration sulfuric acid, 94%(g/100g solution), density 1.831 g/cm3 are required to prepare 1L of 0.100 M solution.
Determine the vapour pressure of a solution at 55C that contains 34.2 g NaCl in 375 ml of water. The vapour pressure of pure water at 55C is 118.1 torr. Assume a solution density of 1.00 g/ml.
calculate the amount of work produced on the system and by applying the first law of thermodynamic calculate the amount of q of heat transfered from the system to the enviroment,
0.60 g of hydrogen chloride (HCl) is dissolved in water to make7 L of solution. What is the pH of the resulting hydrochloric acid solution.
Assume the total heat capacity of the air C air=30 J/K. Describe what's the likely ice will ne after the system reaches equilibrium. b) Estimate theliekly final temperature after reaching equilibrium
An acidic aqueous solution of AlBr3 is in an electrolytic cell. What reactions take place at the anode and the cathode.
What are the direction and magnitude of the velocity of plane 1 relative to plane 2? What is the Degrees? ° north of east
For each of the following, identify the Bronsted-Lowry acid, the Bronsted-Lowry base, the conjugate acid, and the conjugate base.HNO3+H2O
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