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A 2.85 -g sample of an unknown chlorofluorocarbon is decomposed and produces 568 ml of chlorine gas at a pressure of 748 mm Hg and a temperature of 298 K.
What is the percent chlorine (by mass) in the unknown chlorofluorocarbon?
diffraction studies of crystals depend on interferences between planes of electron density whose spacing must be
The dialyzing bag is then immersed in distilled water. Which of the following actions should be taken to remove the most salt from the mixture? Leave the bag in the distilled water for an extended period of time, Replace the dialyzing bag periodic..
Using noble gas (n-1) dx representations write the outer electron configuration for the following ions
2Na + 2H2O ----> 2NaOH + H2 . If 7.2g of Na undergoes reaction with water and the resulting hydrogen is bruned in oxygen to produce water, how many grams of water would be produced
Given the equation Xe(g) + 3F2(g) = XeF6(s) how many moles of fluorine (F2) are used during the formation of 3 moles of xenon hexafluoride, XeF6
Calculate the average value of the cosine of the angle between the electric field direction and the molecular dipole, , of a collection of molecules each with a dipole moment,µ=1.0 x 10-29 Coulomb meters
a solution is prepared by dissolving 17.75 g sulfuric acid h2so4 in enough water to make exactly 100.0 ml of solution.
a hypothetical metal has a face-centered cubic unit cell and a density of 6.12 gcm3. the molar mass of the metal is
When Cl2 is used as water disinfectant, the following reactions should be used to determine the concentration of different species.
What volume is need to give 2L/min flow for 19200min with a tank pressure of 2500psi? Assuming Ideal behavior.
What is the concentration of hydronium ion in an aqueous solution at 25 degrees C has a hydroxide ion concentration of 0.000038?
Suppose 25.0 g of solid NaOH is added to 1.5 L of an aqueous solution that is already 2.4 M in NaOH. Then water is added until the final volume is 4.00 L. Determine the concentration of the NaOH in the resulting solution.
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