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The critical constants of ethane are Pc= 48.20 atm, Vc= 148 cm3mol-1, and Tc= 305.4 K. Calculate the van der Waals parameters of the gas and estimate the radius of the molecules.
Calculate the wavelength of the n=4 to n=1 and the n=4 to n=3 transitions. Indicate in which regions of the electromagnetic spectrum these transitions would occur.
What is the minimum (least negative) cathode potential (versus SHE) needed to electroplate silver onto cutlery in a solution of Ag+ and NH3 in which most of the silver ions are present as the complex Ag(NH3)2+, and the concentration of Ag+(aq) is ..
What cell potential (V) would be expected under the following conditions?
A fossil that formed with 10,000 atoms of a radioactive parent element now contains only 1,250 atoms of that element. If the half-life of the element was 1,000,000 y, how old is the fossil
How many moles of hydronium ion are neutralized by one teaspoonful of Extra strength Maalox plus?
A certain reaction A ? products is second order in A. If this reaction is 10.% complete after 20. s, how long would it take for the reaction to be 90.% complete
Twenty grams of liquid mercury at 98.0 °C is placed in 47.0 g of water initially at 25.0 °C. What is the final temperature of the water, assuming the styrofoam calorimeter absorbs no heat at all?
Check all that apply Water is important to life because: - it does not dissolve certain substances - it causes brownian motion - it is colorless and odorless
A separate experiment is conducted in which 4.82 x 10-5 M CaI2(aq) is added to a solid solution of PbI2 at 20 oC. Qualify how the molar solubility changes
What is the concentration of a solution of silver nitrate if 50.0mL of the solution reacting with excess potassium chloride gives 10g of precipitate
calculate the detection limit of this reaction for each halide, the value below which there will be no observed reaction.
What would be the pressure of the gas, in kPa, if it were transferred to a container at 24 degrees Celcius whose volume is 55.0 L.
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