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A 0.4168-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.7745 g of CO2 and 0.1586 g of H2O. What is the empirical formula of the compound?
Calculate w for each step and for the total process. What values for w would you calculate if the cycle were traversed on the opposite direction?
N2 + 2O2 -----> N2O4 8.03 x 1023 molecules of oxygen react with excess nitrogen. What is the maximum number of grams of dinitrogen tetroxide that can be produced
Determine At what temperature does C 6 H 6 boil when the external pressure = 470 torr?
What is the pH of the solution after 50.0 mL of base has been added? What is the pH of the solution at the equivalence point
Consider the following reaction. N2 + 3H2 ->2NH3 . 28.0 grams of N2 and 5.04 grams of H2 are reacted, producing 17.8 grams of NH3. What is the percent yield?
Construct the hypothetical binary system S-T which represents the following conditions (label all areas): a. component S melts at 1800 centigrate. b. component T melt at 1550 centigrate.
A galvanic cell is constructed with a silver-silver chloride electrode, and a nickel strip immersed in a beaker containing 1.56 x 10-2 M solution of NiCl2. Determine the balanced cell reaction and calculate the potential of the cell. Enter in Volt..
What are its values of DeltaG of vaporizatoin and DeltaS of vaporization at 61 degrees Celsius?
calculate the concentrations of all species in a 0.690 m na2so3 sodium sulfite solution. the ionization constants for
Consider the Lewis Resonance structure for the chlorite ion. How many total structures can be drawn, and how many of those structures obey the octet rule?
From a consideration of the Lewis structure of the thiocyanate ion, in which carbon has a double bond with both the sulfur and nitrogen atoms, what are the formal charges on the sulfur, carbon, and nitrogen atoms are, respectively
The solubility of CaSO4 in pure water at 0oC is 1.13 gram(s) per liter. What is the value of the solubility product.
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