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Carbon tetrachloride was widely used for many years as a solvent until its harmful properties became well established. Carbon tetrachloride may be prepared by the reaction of natural gas (methane, CH4) and elemental chlorine gas in the presence of ultraviolet light. Write the unbalanced chemical equation for this reaction. (HCl(g) is a product of this reaction. Include states-of-matter under SATP conditions in the answer
Combustion of a .2000g sample of vitamin C sample produced .2998 g of carbon dioxide and .0819 g of water. If this compound is composed of C, H, and O, then what is its empirical formula?
the freezing point of the resulting solution is 3.77 degrees C. The freezing point of pure benzene is 5.48 degrees C and Kf for benzene is 5.12 degrees C/m. Calculate the molar mass of the unknown compound.
Calculate the pH at 25 degrees C of a 0.25-M aqueous solution of oxalic acid (H2C2O4). (Ka1 and Ka2 for oxalic acid are 6.5 x 10^-2 and 6.1 x 10^-5, respectively.)
in the titration of 50.0 ml of 1.0 m methylamine ch3nh2 kb 4.4 10-4 with 0.50 m hcl calculate the ph under the
Exactly 750.0ml of a solution that contained 480.4ppm of Ba(NO3)2 were mixed with 200.0ml of a solution that was 0.03090 M in Al2(SO4)3. What mass of solid BaSO was formed
As a solid, Fe adopts a body-centered cubic unit cell. How many unit cells are present per cubic centimeter of Fe. What is the volume of a unit cell of this metal
Starting with 3.30 moles of HBr in a 12.0 L reaction vessel, calculate the concentration of H2, Br2, and HBr at equil.
Calculate the concentration of SCN- present in the Hg22+/Cu+ solution when the first (initial) cation begins to precipitate, and the concentration of SCN- present in this solution when the second (final) cation begins to precipitate
Which is predicted to be the most ionic substance? a) NiS b) CuI c) CoO d) NaBr
how much heat is transferred when 400 grams of mercury (Hg) is vaporized? specific heat (c) = 0.14J/g C, heat of fusion = 2.29 kJ/mol, heat of vaporization = 59.1 kJ/mol.
the characteristic odor of pineapple is due to ethyl butyrate a compound containing carbon hydrogen and oxygen.
determine the molarity of a saturated nai sodium iodide solution aqueous formed as twenty five degree celsius
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