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In what type of material is the energy gap between the valence and the conduction band the greatest? Na, Ge or diamond. Draw a rough energy band showing the valence and conduction bands in these materials.
The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted
Calculate the solubility (in mol/L) of silver chloride in 2.0 M NH3 solution. How many grams of AgCl will dissolve in 500. mL of 2.0 M NH3?
Dehydration of 2-methyl-2-pentanol forms one major and one minor organic product. Draw the structures, including hydrogen atoms
Einstein stated that the incident radiation had to have a minimum energy to dislodge the electron from the metal surface. This energy is called the work function.
calculate that how many liters of carbon monoxide gas, measured under the same conditions, is essential?
when 31 mL of 0.200 M HCl has been added to 39 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3
At some temperature, a chemist found the following equilibrium concentrations. [Fe3+] = 6.63 10-3 M, [SCN-] = 7.36 10-3 M, [FeSCN2+] = 4.34 10-2 M
Calculate Delta Ssurr and Delta Stotal at 70 degree. B) Does benzene boil at 70 degree and 1 atm pressure? Calculate the normal boiling point of benzene.
excess permanganate remains after the reaction period, a small amount of ethanol
Calculate the number of ATPs generated from the metabolic oxidation of the four carbons of acetoacetyl-CoA to CO2. Now consider the homolog derived from oxidation of an odd numbered carbon chain
During the discharge of an alkaline battery, 4.90of Zn are consumed at the anode of the battery. What mass of MnO2 is reduced at the cathode during this discharge?
Calculate the molar mass that would be obtained from the actual experimental data under the following conditions. The unknown is methyl propyl ether (CH3OC3H7)
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