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A sample of neon gas diffuses through a porous barrier at a rate of 72.1 grams per hour. At what rate does it take argon gas to diffuse through the same barrier if the temperature is the same?
Phosphorus pentachloride decomposes according to the chemical equation Kc=1.80@250C PCL5(g) PCL3(g)+CL2(g) A 0.240 mol sample of PCl5(g) is injected into an empty 3.95 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and P..
when 10.0g of water at 100.0 oc isadded to 100.0g of water at 10.0ocin a calorimeter the final temperature is 18.0oc.
The rate at which an Australian tree cricket chirps is 184 per minute at 35oC, but only 50 chirps per minute at 10oC. Assuming that cricket chirping follows the Arrhenius Law, what is the activation energy for the cricket chirping (in kJ/mol)? Ent..
a gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures 257
Qualitatively describe the differences among SRAM. DRAM. and flash memory in terms of closeness to the basic CMOS manufacturing technology. write speed. volatility, and cell size.
Doubling the concentrations of H2S while keeping the concentration of Cl2 constant results in the initital rate increasing by a factor of two.
What is the estimated quantity of energy released in the combustion of methanol?
When 2.11 g of a nonelectrolyte solute is dissolved in 365 mL of water at 25 °C, the resulting solution exerts an osmotic pressure of 845 torr
Problem- For the dissolving of ammonium nitrate in water, change in H = 25.7 kj/mol and change in S= 108.7 J/mol k. Calculate change in G and Ksp for the process at 25 degrees Celsius.
Draw the structures of salicylic acid and aspirin. Circle and identify the functional groups present in each compound and sulfuric acid is a catalyst. What does that mean?
question technetium-99 is widely used to diagnosis in medicine. its half-life is 6.02 hours. a sample prepared in the
a solution is prepared by dissolving 4.21 g of a nonelectrolyte in 50.0 g of water. If the boiling point increases by 0.203 C what is the molar mass of the solute? The boiling point elevation constant for water is 0.512 C/.
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