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calculate the molar change in chemical potential of an ideal gas that expands 10 times of its original vol. at 100k
The excess of acid needed 16ml of 0.25M Naoh for neutralization. then Calculate the percentage of calcium carbonate and magnesium carbonate?
In an oxidation-reduction reaction, it required 25.6 ml of a 0.65 M potassium permanganate solution to reach the equivalence point with 15.0 mL of an iron(II) sulfate solution.
what is the differences between partial and full method validation? under what circumstances are they being carried out?
Explain Why a glacial Acetic acid in a conductance set-up does forms gradually brighter lights that is dim to bright because it is frequently diluted with water?
An sulphuric acid solution has a concentration 3.75 M and a density of 1.230 g/cm3. Determine the molality of the solution.
Calculate the molar concentration of OH- ions in a 0.550 M solution of hypobromite ion (BrO-; Kb=4.0 x 10^-6). What is the pH of this solution?
Calculate the wavelength of the electromagnetic radiation required to excite an electron from the ground state to the level with n = 5 in a one-dimensional box 39.8 pm in length.
A close chemical relative of the banned insecticide DDT is methoxychlor (C16H15Cl3O2). Methoxychlor is currently used as a home insecticide. Calculate the mass percent of oxygen in methoxychlor.
When 25.0 mL of 0.400 M H2SO4 and 50.0 mL of 0.850 M H2SO4 are mixed, what is the molarity of sulfuric acid in the final solution?
Helium= ? g/mL Neon= ? g/mL Carbon monoxide= ? g/mL Nitrogen monoxide= ? g/mL If the density of air at 25 degrees C and 1.00 atm is 0.00117 g/mL, will any of the balloons float in this air? Which ones?
TNT(trinitrotoluene) decomposes exposively What volumes of Hydrogen gas and Nitrogen gas are produced if 5.8 liters of CO is produced ?
Under what conditions of pressure and temperature do real gases most closely approximate ideal-gas behavior?
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