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Nickel has a face-centered cubic unit cell. The density of nickel is 6.84 g/cm3. Calculate a value for the edge length of the nickel unit cell.
Calculate the mass of one oxygen atom and determine the number of oxygen atoms in a 10.00g sample of the element.
Why is the catalyst Copper Chloride faster at the decomposition of hydrogen peroxide than Postassium Iodide and Lead Oxide
what would be the effect on your calculated molecular weight of p-dichlorobenzene if your lab partner left the stopper
Identify the conjugate base of HSO4 - in the reaction H2PO4- + HSO4- ? H3PO4 + SO42- A) H2PO4- B) H2SO4 C) H2O D) H3PO4 E) SO42-
Compare the relative rate of the foward (EtOH as a substrate) and back reaction (with acetylaldehyde). Use the Michaelis-Menten equation to solve for v when ethanol is 99mM and acetylaldehyde is the substrate and its concentration is 1mM
Evaluate the energy of an electron excited from a hydrogen atom using Bohr's model. Determine the maximum wavelength of energy needed to observe a photoelectric effect for potassium.
Draw the LUMO Huckel MO for the cation 1, 3, 5-heptatriene (carbocation is carbon 7). Also, please state the number of pi electrons in this conjugate system
Propionic acid and methyl acetate are isomers. Which has the higher boiling point and why. Which one would have the greater rf value on TLC.
A certain protein was found to contain 0.230 % iron by mass. Determine the minimum molecular mass of the protein.
A gas expands and does P-V work on the surroundings equal to 325 J. At the same time, it absorbs 127 J of heat from the surroundings. Calculate the change in energy of the gas.
How does a radioactive atom's half-life influence its effect on its environment? Why is it important for chemists to take this into account
What concentration of glucose will be isotonic with 1.2% CaCl2 solution? Assume a van't Hoff factor of 2.8 for the CaCl2 solution. The molar masses of glucose and CaCl2 are 180.2 g/mol and 111.0 g/mol, respectively.
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