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A diamond has a face-centered cubic unit cell, with four more C atoms in tetrahedral holes within the cell. Densities of diamonds vary from 3.01 g/cm^3 because C atoms are missing from some holes.
A.) Calculate the unit-cell edge length of the densest diamond.
B.) Assuming the cell dimensions are fixed, how many C atoms are in the unit cell of the diamond with the lowest density?
An effective treatment for some cancerous tumors involve irradiation with "fast" neutrons. The neutrons from one treatment source have an average velocity of 3.2 x 10^7 m/s. If the velocities of the individual neutrons are known to within 2% of th..
Ions B and C react to form complex BC. If 20.0mL of 1.25M B is combined with 20.0mL of 1.25M C, 0.00650 mol of complex BC is formed. Determine the equilibrium constant for this reaction.
Describe the hybrid orbitals used by the central atom in O 3 .and also determines what is the number of sigma and pi bonds present in O 3 .
A mixture of gas contains 46.3 % methane, 37.2% ethane and 16.5% propane(by mass). A 477g sample of the gass is burned with exces oxygen
a mixture conntains two compound that absorbs strongly in the 300-600nm range the molar absorptivities of the two compounds at two wavelenghts in this range are shown in the table compound molar absorptivity at 400 nm mola..
in the reaction p4 5 o2 rarr 2 p2o5 how many moles of o2 are consumed each time 0.5 moles of p2o5
If cAMP concnetration increases what happens to each of these pathways in the liver? Name the critical enzyme that becomes phosphorylated (not necessarily by PKA) that effects the flux through the pathway
how many moles of gas are contained in a compressed air tank for a suba diving that has a volume of 7.0 L and a pressure of 210 atm at 25 0C .
How to calculate the theoretical yield for diels alder-synthesis of 1,2,3,4-tetraphenylnaphthalene which is generate from benzyne (anthranillic acid+ isomanyl nitrite) and the presence of 2,3,4,5-tetraphenylcyclopentadienone? Are we going to use ..
1. Gasoline (assumed to be 100% octane) is combusted in your car according to the following chemical reaction: 2 C8H18 + 25 O2 -> 16 CO2 + 18 H2O
how much limestone must be decomposed by heating to produce 150.0 grams of lime cao?assuming that the limestone
what is the molarity of an aqueous solution containing 360g of glucose in 2.0L of solution.
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