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Problem- Sodium oxide crystallizes in an ionic structure in which the O^2- ions are in a face-centered cubic lattice and the Na^+ ions are in tetrahedral holes. what is the number of Na^+ ions in this unit cell?
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A 150.0 L reaction chamber is charged with reactants to subsequent partial pressures at 500oC:P(NH3) =1.3 ATM,P(O2) =1.5ATM. Explain what is the limiting reactant?
A 0.264-gram sample of an amino acid was dissolved in 95.0mL of water and titrated with 0.105M NaOH. The first equivalence point was found at V(OH)=16.3mL.
Two 26.0 ml samples, one 0.100 M HCl and the other 0.100 M HF, were titrated with 0.200 M KOH. What is the volume of added base at the equivalence point for HCl. What is the volume of added base at the equivalence point for HF
Show by explicit integration that (a) hydrogenic 1s and 2s orbitals, (b) 2px and 2py orbitals are mutually orthogonal.
Question- One-hundred milliliters of 1.75 mM NaCl is mixed with 80.0mL of 3.20 mM MgCl2 at 20 degrees Celsius. Calculate the osmotic pressure of each starting solution and that of the mixture, assuming that the volumes are additive and that both s..
the hypothetical metal Q with atomic mass of 68.33 has two isotopes ^67Q (isotopic mass 66.945 amu) and ^69Q (isotpes mass 68.958 amu) calculate the abundance of ^67Q in %
Draw the major organic substitution product(s) for (2R,3S)-2-bromo-3-methylpentane reacting with the given nucleophile. Indicate the stereochemistry, including H\'s, at each stereogenic center. Omit any byproducts.
calculate the molarity and mole fraction of acetone in a 1.06 m solution of acetone ch3coch3 in ethanol c2h5oh. density
Write a complete mathematical model for a closed system consisting of water only at equilibrium. Be sure to include starting materials, a species list, equilibria (if any), mass balance (if any), a charge balance equation, and other constraints
if 2.50 mol of copper ii and 5.50 mol of silver nitrate are available to react by single replacement. what is the
Outline a detailed scheme utilizing extractions that he can use to separate the mixture back into the pure components before the professor finds out.
Determine the hydraulic conductivity and transmissivity of the aquifer and What would Q be if the hydraulic gradient
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