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The density (ρ) of a solution of Na2SO4(aq) is related to the concentration (c) according to ρ = 0.1109 c + 1.0075, where ρ is in g cm-3 and c is in mol L-1. Calculate the density of this solution.
Atoms of different elements also have different sizes, just like kernels and marbles. Use the atomic radii given below to answer the following questions. Remember that the volume of a sphere is 4/3 × ? × radius3.
Neglect the absorption of other waste gas components into the water, and the evaporation of water into the waste gas stream. What is the mole fraction of NH3 in the scrubbed waste gas stream
What is the empirical formula of a hydrocarbon if complete combustion or 5.900 mg of the hydrocarbon produced 19.201 mg of CO2 and 5.895 mg of H2O? Be sure to write C first in the formula.
The density of Cesium Chloride solid is 3.99 g/cm^3, and the radius of the Cs- ion is 181pm. What is the radius of the Cs+ ion in the center of the cell
grams of a sulfate-containing unknown with excess barium chloride. If 0.6500 grams of barium sulfate is produced, what is the percentage sulfate in the unknown?
Add charges, single electron dots, and/or pairs of dots as appropriate to show the Lewis symbols for the most stable ion of each element. Treat n=4 as the valence shell in all cases.
Using planck's distribution of at a temperature, T, with a wavelength corresponding to the maximum in the distribution, prove that wavelength T is a constant. Then deduce an expression for the constant as a multiple of the second radiation constan..
Write the expression for Kc for the following reactions. In each case indicate whether the reaction is homogenous or heterogeneous. a) 3NO(g) ?? N2O(g) + NO(g)
Indicate the number of unpaired electrons for following: [noble gas]ns^2(n-2)f^6 ? Please include the rationale?
Calculate how long it would take to cook a traditional three-minute egg on top of Mt. McKinley in Alaska on a day when the atmospheric pressure there is 355 torr.
A sample of air contains 78.08 % N2, 20.94% O2, 0.05 %CO2, 0.93% Ar by volume. a) How many molecules of each gas present in 1.00 L sample at 25 C and 1.00 atm. b)What is the partial pressure of each gas?
a truck driver used sand to soak up a 1 g spill of lindanec6h6cl6. he placed tehcontaminate soil in an open drum which
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