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An unknown element crystallizes in a cubic unit cell with an edge length of 3.27 Å. It has a density of 18.38 g/cm3. The atomic mass of the element is 193.5 amu.
Calculate the mass of one atom in grams. Calculate the mass of all atoms in one unit cell in grams. How many atoms are contained in one unit cell of of this element?
column of air with a pressure of 1.57 *10^5 Pa and an area of 1.15 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column?
How many milliliters of 0.0120 M Na2S2O3 solution are needed to dissolve 0.740 g of AgBr.
find the specific solubilities (in g/100g H2O) in both cold and hot water for AgCl, PbCl2, and Hg2Cl2.
Determine its molecular formula if the molar mass of the compound = 199.55 grams per mole?
A cannonball made of iron has a volume of 115 cm3. If iron has a density of 7.86 g/cm3, what is the mass in grams of the cannonball?
Calculate the solubility of calcium oxalate in plain water and the concentrations of calcium and oxalate ions in a 0.010 M Ca(NO3)2 solution
Explain the process of reduction when referring to metals within the earth. It is possible to have glass and asbestos with identical composition, and yet one is considered hazardous and the other is not.
ethyl acetate:petroleum ether was used to elute the chlesterol before dichloromethane
Mercury has a density of 13.6 g per mL. A barometer holding 9.50mL of mercury has broken. The cost of mercury disposal is based on mass. How many kilograms of mercury were in the barometer?
Calculate the volume of concentrated HCL (37% by weight, density 1.19 g/mL) that must be added to 500 mL of .10 M ammonia to make
The solid fuel in the booster stage of the space shuttle is a mixture of ammonium perchlorate and aluminum powder. On ignition, the reaction that takes place is 6 NH4ClO4(s) + 10 Al(s) ? 5 Al2O3(s) + 3 N2(g) + 6 HCl(g) + 9 H2O(g)
Which carbons release during the first turn of the TCA cycle. And then second turn of the cycle. Details and structures would be very helpful.
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