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A spherical ball of lead has a diameter of 4.0cm . What is the mass of the sphere if lead has a density of 11.34g/cm^3? (The volume of a sphere is (4\3) pi r^3 where r is the radius.)
SO2 at 1000oC S + O2 2SO2 + O2 2SO3 at 500 oC with a vanadium catalyst SO3 + H2O H2SO4 And what would be do with this sulfuric acid?
From there, how would I find the moles of salicylic acid in aspirin sample (mol) and the mass of salicylic acid in aspirin sample (g), which should help me calculate the percent purity of aspirin and the percent yield of aspirin in sample. Thank y..
If a copper-containing compound is found to be 29.2% Cu by mass, and there is only one copper atom per formula unit, what is the formula mass of the compound in amu?
Write the net ionic equation for each of these reactions and demonstrate how two of them add together to yield the third. Using your data and Hess's Law, determine the enthalphy of ionization of HC2H3O2.
Calculate the entropy change that occurs when 3.5 moles of an ideal gas expands from 1.75 L at 20 degress Celsius to 8.46 L at .54 atm.
Calculate the volume occupied by 1.00 mol N2 using the van der Waals equation in the form of a virial expansion at its Boyle temperature. Assume that the pressure is 10 atm throughout.
How much time is required to produce 200g of alumimun metal for molten aluminum oxide dissolved in cryolite, if you use a 12.0 amp current.
What is the heat capacity of mercury if it requires 167 J to change the temperatures of 15.0g mercury from 25.0 Celsius to 33.0 Celsius
It only contains only C,H, and O. A 116mg sample was treated with an excess of methylmagnesium bromide, producing 48.7ml of methane gas at 20 degrees C and 750mm Hg.
How would the results for atomic weight have differed if the hot water was never brought to a boil?
What is the freezing point of a 28.6% (by mass) aqueous solution of HCl? Assume the HCl is 100% ionized.
A solution is 21.0% ethylene glycol (C2H6O2) solution in water with density of 1.02g/mL. WHat is the molarity?
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