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You are given a small bar of an unknown metal. You find the density of the metal to be 10.5 g/cm3. An X-ray diffraction experiment measures the edge of the unit cell as 409 pm. Assuming that the metal crystallizes in a face-centered lattice, what is the metal most likely to be?
a chamber is filled with gas and pressurized to 2 atmg and then is connected to a second chamber filled with the same
Problem- Write an equation that represents the formation of a part of the polystyrene polymer from three of the monomer units.
A Be3+ ion emitts a photon with a frequency of 4.68 × 1016 Hz. If the energy of the initial state of the Be3+ ion was -3.88 × 10(-18) J, calculate the energy of the final state. Express answer in scientific notation.
a prepare a series of dilutions of cocl2.6h2o in the range of 0.000 to 0.200 mol dm-3. determine the absorbance of the
a beam of 632.8 nm photons from a he-ne laser strikes a detector area of 5.0 mm2. the laser has a flux of 3.18 x 1015
using the same sample of gas p1 405 torr t1 1 degree celsius we wish to change the pressure to 4050 torr with no
Question- Ba(OH)2 is a strong electrolyte. Determine the concentration of each of the individual ions in a 0.250 M Ba(OH)2 solution.
For H35Cl the internuclear distance is 0.1275 nm. Calculate the moment of inertia, I, and Calculate the energies of the first three rotational levels.
Which of the following gases deviate most from behavior of ideal gas: CO2, O2, He, N2, CH4
The molecular formula for lactic acid is C3H6O3, and its structural formula is CH3CH(OH)COOH. Is this molecule a carbohydrate? Explain.
How many grams of 97% pure NaOH pellets do you need to make 1.000 liter of 1.5 NaOH
A gaseous fuel mixture stored at 752 mmHg and 298 K contains only methane and propane . When 11.6L of this fuel mixture is burned, it produces 767kJ of heat.
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