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The mineral bauxite, which is mostly Al2O3, is the principal industrial source of aluminum metal. How much aluminum can be produced from 4.50 ton of Al2O3
The reported values for one compound (CaHbOc) were as follows: mass: 214.1360 g/mol; percent C and H: 84.07 and 8.47, respectively. Determine the molecular formula of the compound.
The pKa's of benzoic acid and 4-nitroanilinium hydrochloride are 4.2 and 1.0, respectively.
How many cubic centimeters of an ore containing only 0.22% gold (by mass) must be processed to obtain $100 worth of gold.
A certain first-order reaction () has a rate constant of 6.90×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
If a 1.22 g piece of gold is hammered into a sheet whose area is 32.4 ft2, what is the average thickness of the sheet? (The density of gold is 19.32 g cm-3.)
An intermediate in a chemical reaction is a species that the reactant molecules interact with during an early step in a reaction that is regenerated
Carryout the following conversions. Report your answer to the correct number of significant figures
Determine the pH of the solution before the addition of any HNO3. The Kb of NH3 is 1.8 × 10-5. a. 4.74 b.9.26 c.11.13 d. 13.00 e.12.55
if the initial [H2] = 0.200M, [I2] = 0.200M and Keq = 55.6 at 250°C calculate the equilibrium concentrations of all molecules.
Detailed analysis of the 369 and 295 cm-1 bands show them to arise from totally symmetric modes. Show that the Raman spectrum is consistent with a trigonal-bipyrimidal geometry.
Light with a wavelength of 330nm shines on a piece of metal with a threshold energy of 4.60 eV. What would you expect for the kinetic energy
What is the kinetic energy of the emitted electrons whencesium is exposed to UV rays of frequency 1.5x10 15 Hz?
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