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Sulfur dioxide, SO2(g), can react with oxygen to produce sulfur trioxide, SO3(g), by the following reaction
2SO2(g) + O2(g) ---> 2SO3(g)
The standard enthalpies of formation for SO2(g) and SO3(g) are
Delta H f [SO2 (g)] = -296.8 KJDelta H f [SO3 (g)] = -395.7 KJ
Calculate the amount of energy in the form of heat that is produced when a volume of 2.73 L of SO2(g) is converted to 2.73 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 atm and 25.0 °C. Assume ideal gas behavior.
What is the heat of neutralization per mole of HCl? Assume that the original solutions made independent contributions to the total heat capacity of the system following their mixing. ( in kJ/mol)
Caulculate the change in pH when 0.95 g of CH3COONa is added to 48 mL of 0.50 M acetic acid, CH3COOH. Ignore any changes in volume. The Ka for CH3COOH is 1.8 * 10^-5
Cyclic Alkyne reaction with KMnO4 and O3, Molecule 1: 5 carbon ring, carbon 1 has a carbon attached which also is triple bonded to another carbon (this end carbon just has a H attached.)
2.00 moles of a gas occupies 62.2 L at a par- ticular temperature and pressure. Its density is 0.900 g/L. What is the molar mass?
when a mixture at 273 K is heated to 473 K, how many different chemical changes occur? How many physical changes occur?
What is the pH at the half-stoichiometric point (half-way to the endpoint) for the titration of 0.22 M HNO2(aq) with 0.10 M KOH(aq)?
Identify the incorrect names or formulas.
How do the values of delta G compare to those calculated from delta H and delta S? which of these two methods could be used to determine how delta G changes with temp?
what is the mole fraction of magnesium chloride in a solution prepared by adding 15 grams of magnesium chloride
The pH of uncontaminated rain water is about 5.6. The pH of rain falling in Cleveland, OH is 4.2 and that in Omaha, NE is 5.5. What is the concentration of hydrogen ions in the rainfall of each city? [H] 6.3 ^ -5 for Cleveland.
A buffer solution is prepared by dissolving 1.50 g each of benzoic acid, C6H5CO2H, and Sodium Benzoate, NaC6H5CO2, in a 150.00 ml of solution. The Ka for benzoic acid = 6.3E-5.
How many grams of water can be cooled from 37 C to 20 C by the evaporation of 45 gm of water?
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