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The sun is a sphere with an estimated mass of 2.0X10^30kg. If the radius of the sun is 7.0X10^5km, what is the average density of the sun in units of grams per cubic centimeter? The volume of a sphere is (4/3)?^3.
The heat combustion of ch4 is 890.4 the heat capacity of h20 is 75.2. find the volume of methane measured at 298k and .690atm reauired to convert
A weather balloon is filled to 125 L when the atmosphereic pressure is 748 mm Hg and the air temperature is 28 degrees celcius. It rises to where the atmospheric pressure is 787mm Hg and the temperature
To what general class of mechanisms does the attack of bromide ion, Br-, on the cyclic bromonium ion
A particular diatomic molecule which contains H exhibits a 16.95 cm^-1 spacing between its rotational lines and bond length of 141.5 picometers. Determine the mass (in amu) of the unknown atom in the molecule.
You have a volume of 100 L at a concentration of 100 PPM of benzene. If you later sampled from this known concentration at a temperature of 15° C
aluminum block and that the alcohol vaporizes at 25 degree Celsius). Heat of vaporization of the alcohol = 45.4 kj/mol at 25 0C
Calculate the radius of the metal atom. A hypothetical metal has a face-centered cubic unit cell with the edge length of 4.943 Å.
How much heat is required to heat 10.0g of ice at -5.00 degree Celsius to become water vapor at 107.00 degree Celsius.
chloride solution and it turned out to be 8.35g, what is the percentage composition of the iron (III) chloride solution?
a cylinder of He gas has a volume of 25.0L at 22 degrees C and 5.6atm. How many moles of He are in such a cylinder?
The bais set for the Fe atom consists of valence 3d, 4s and 4p orbitals. Determine the symmetries of these orbitals under Oh symmetry. (c) Construct an MO diagram for the formation of [FeH6]4- from Fe and the H6- fragment Showing which MOs are occ..
Calculate the concentration of Cu2+ in a solution prepared by adding 5.2 x 10 -3 mol of CuSO4 to 0.450L of 0.38 M NH3.
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