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Determine the atomic packing factor (APF) of the simple hexagonal crystal structure assuming the lattice parameter a is equal to 2R and the lattice parameter c is equal to 1.5 a. Assume one atom on each lattice point
Draw three possible structures for the B3H8- ion. Clearly indicate any three-center bonds. Which structure is most plausible (considering molecular orbital theory)
Calculate delta H for this reaction at 298K. Calculate delta G for this reaction at 298K. Calculate delta S for the reaction, for the surroundings, and the total delta S.
The sum of the third and the fourth terms is 48. If the terms of the geometric progression are alternately positive and negative, then the first term is?
a chemistry student needs of chloroform for an experiment. by consulting the crc handbook of chemistry and physics the
Adipic acid with melting point 151c is added to succinc acid of 185 c what is the effective in melting point
A flexible vessel contains 41 L of gas where the pressure is 1.2 atm. What will the volume be when the pressure is 0.76 atm, the temperature remaining constant
Propose a reasonable synthetic strategy for the synthesis of trans-6-methyl-3-heptene from 4-methyl-1-pentyne.
Why does aluminum hydroxide readily dissolve in concentrated NaOH but not in concentrated NH3. Please give a thorough explanation, not just a short answer.
what happens when acetate ion reacts with mercuric chcloride? explain with reactions?
Calculate delta H in kilojoules for the reaction, assuming that the heat capacity of the calorimeter is 776J/C , that the specific heat of the final solution is the same as that of water [(4.18 J/(gxC) ], and that the density of the solution is 1...
The heat of vaporization of Freon, CCl2F2, is 17.2 kJ/mol at 25* C. What is the change of entropy for one mole of liquid Freon when it vaporizes at 25*C
What is the silver ion concentration in a solution prepared by mixing 419 mL of 0.391 M silver nitrate with 457 mL of 0.417 M sodium carbonate. The Ksp of silver carbonate is 8.1 × 10-12
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