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Aluminum foil used for storing food weighs about 0.3g/in2. Estimate how many atoms are contained in one square inch of aluminum foil. Estimate the volume per aluminum atom and, from this, determine a dimension characteristic of a single aluminum atom. Compare your estimate value to the tabulated atomic radius for aluminum.
what is the value of Kc for the following reaction at equilibrium: N2(g) + 3H2(g) 2NH3(g) if [NH3]=2.2 M, [N2]=.44 M, and [H2]=.40 M
At a particular temp and pressure it takes 4.55 min for a 1.5 L sample of He to effuse through a porous membrane. how long would it take for 1.5 L of F2 to effuse under the same conditions
The solution density = 1.013 g/mL and suppose that the density of pure water =1.00 g/mL. Determine the molality of this solution?
How to obtain IR spectra of cyclohexene. with experment obtained Refractive index of 1.4406 Corrected .00054 given standard 1.4460 of cyclohexene let me know if that is the info needed to calcuate and how to calculate
A qunatity of .300 grams of copper was deposited from a CuSO4 solution by passing a current of 3.00 Amperes through a solutiong for 304 seconds. Using this information calculate the value of the faraday constant.
Formulate a chemical reaction for a generic alkyl halide with silver nitrate in ethanol and with sodium iodide in acetone. In each case, which alkyl halides react faster?
The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.8. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.75 M B(aq) with 0.75 M HCl(aq).
1.if 15.0g of a gas dissolves in 1.00 l of water at 110kpawhat mass will dissolve at 101.325kpa?2.the solubility of an
The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration. How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay?
a volume of water was delivered using a buret and experimentally determined to have a mass of 2.00-g. what was the
a sample of 1.42 g of helium and an unweighed quantity of oxygen are mixed in a flask at room temperature. the partial
If 1.500 g of solute having molar mass of 125.0 g were dissolved in 35 g of camphor, what would be the resulting freezing point of the solution?
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