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Vanadium metal crystallizes in a body centerd cubic crystal lattice. The length of a unit is 0.305nm. Calculate the density of vanadium in g/cm^3
Determine the linear and volume shrinkages that occur during the drying and sintering of a gel containing 5 vol% solids if the dried gel and the sintered gel have a solids content (relative density) of 50% and 100%, respectively
Na3P + 3H2O ---> PH3 + 3NaOH. What is the theoretical yield of PH3 when 150 grams of Na3P is mixed with 250 grams of H2O? If the actual yield is 30 grams, what is the % yield?
How much heat energy, in kilojoules, is required to convert 68.0 grams of ice at -18.0 degrees C to water at 25.0 degrees C
Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (nm), where 1 nm= 10^-9 m. What is the energy of the X-rays
The daily dose of ampicillin for the treatment of an ear infection is 115 mg/kg of body weight. What is the daily dose for a 34-lb child?
Carbon Dioxide and water form during combustion of methane. How many grams of water vapor form when 2.39 g of methane react completely with excess oxygen? CH4 (g) + 2 O2 (g) ------> CO2 (g) + 2 H2O (g)
What are the empirical formula and the molecular formula of the compound.
At least how many standard solutions would you need to make a calibration graph, assuming that the graph is expected to be a straight line
what is the actual yeid of bromobutane with the area of 750 and a theriotical of 100%
Draw the molecular orbitals for each geometry, using the 2s orbitals as a basis set. Give the expected ground state for each geometry.
What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 20 A. Express your answer using two significant figures.
Predict if the following conditions would result in the formation of a precipitate: (A) 0.0025 M Fe^3+ at pH 6.00 (B) 0.0025M Ba^2+ and a 1.25* 10^-4 M solution of sodium sulfate
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