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In metallic magnesium explain what fraction of the 'molecular orbits' contained in the valence band plus the conduction band is occupied by electrons? Explain
What is the minimum quantity of atmospheric oxygen required to completely convert 0.30 moles of propan-1-ol into carbon dioxide and water
A 255-mL flask contains pure helium at a pressure of 760 torr. A second flask with a volume of 455 ml contains pure argon at a pressure of 722 torr.
You have measured the absorbance for a vitamin sample to be 1.2 at a wavelength of 264. Can you use this reading to determine the INITIAL CONCENTRATION of your vitamin sample?
What is the molar mass of toluene if 0.85 g of toluene depresses the freezing point of 100. g of benzene by 0.47°C. Kf of benzene is 5.12°C/m.
the activation energy for the decomposition of hydrogen peroxide is 43 kjmol whereas when the reaction is catalyzed by
what is the freezing point of an aqueous 2.65 m calcium chloride cacl2 solution? the freezing point of pure water is
the Pyranose form of Fructose is much sweeter than the Furanose form, Sweetness in honey decreases as temperature rises
The solubility products of PbSO4 and SrSO4 are 6.3 * 10^-7 and 3.2 * 10^-7, respectively. What are the values of [ SO4 2-], [Pb 2+], and [Sr 2+] in a solution at equilibrium with both substances
The gas with an initial volume of 24.0 L at a pressure of 565 mmHg is compressed until the volume is 16.0 L. What is the final pressure of the gas, assuming the temperature does not change?
What is the pH of a buffer prepared by adding 0.809mol of the weak acid HA to 0.305mol of NaA in 2.00L of solution? the dissociation constant Ka of HA is 5.66x10^-7
If 60.0 g of H3PO4 is dissolved in enough water to form 175 mL of solution, what is the molarity (M) of the solution
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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