Atomic bonding point of view
Pure aluminum is ductile metal withlow tensile strength and hardness. Its oxide Al2O3 (alumaina) is extremenly strong, hard, and brittle. Can you explain this difference from am atomic bonding point of view?
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Determine the direction of a reaction in a solution containing initially 10-4M acetaldehyde, 0.1M ethanol, 0.1M pyruvate, and 10-2M lactate. What is the value of Gibbs' function for this reaction
Part A: Thymolphthalein is an indicator that changes color over a range from pH = 9.3 to pH = 10.5 . What is Ka of thymolphthalein. Part B: Alizarin yellow R, Ka=7.9x10^-12, is yellow in its protonated form (HX) and red in its ionized form (X-)
Photosynthesis uses 660 nm light to convert carbon dioxide and water into gluclose and oxygen. calculate the energy of a mole of a photon
The hydrocarbon contains 93.75% carbon and 6.25% HYDROGEN. Calculate its empirical formula.
if titration of 20.0 mL of 1.50 M H2SO4 solution requires 25.0 mL of NaOH to reach equivalence point, what is the molarity of the NaOH titrant
What is the minimum concentration of Mg2+ required to begin precipitating Mg(OH)2(s) in a solution of pH 10.82? For Mg(OH)2
If an 20 mL acetic acid is neutralized with 50 mL of 0.8 M NaOH, what is the concentration of the acid
When 1.00 gram of reserpine is dissolved in 25.0 grams of camphor, the freezing point depression is 26.3 degrees C. Calculate the molality of the solution and the molar mass of reserpentine.
What is the mole fraction of NaCl in this solution? what would be the vapor pressure of this solution at 45C? The vapor pressure of pure water is 23.8 torr at 25 C and 71.9 torr at 45C
Define in one or two sentences the following terms + Indicate one step in glycolysis in which they are significant. kinetic perfection and substrate level phosphorylation.
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