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When 49 mL of a solution containing 3.1 M AlCl3 is diluted to 53 mL, a dilute solution is formed. How many moles of Al3+ ions are contained in 14 mL of the dilute solution
A 25.0-mL sample of 0.150 M butanoic acid is titrated with a 0.150 M NaOH solution. What is the pH before any base is added? The Ka of butanoic acid is 1.5 x 10-5.
the threshold wavelength for potassium metal is 564 nm. what is its work? what is the kinetic energy of electrons ejected if radiation of wavelength 410 nm is used?
If 50.0 of ethanol (density 0.789g/mL) initially at 6.0 is mixed with 50.0 of water initially at 28.2 in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the mixture?
Estimate how long it will take for the bleach molecules to diffuse through the extent of the room, assuming that the bleach bottle is in the center of the room, and the room is perfectly square, and is a 10 foot x 10 foot room.
the molar heat capacities of iron and gold are 25.19J/(mol*degrees celsius) and 25.41 J/(mol*degrees celsius), respectively. what is the final temperature of the water and pieces of metal?
Why must the distillation head temperature be maintained below 45?C during the cracking of dicyclopentadiene?
depending on temperature, RbCl can exist in either the rock-salt or cesium-chloride structure. What is the coordination number of the anion and cation in each of these structures?
The vapor pressure of pure CCl4 at that temperature is 143 torr and the vapor pressure of the pure unknown is 85 torr. What is the molar mass of the unknown?
Calculate the mass of silver chloride in grams required to make 4.4g of silver plating.
Consider the following reaction at equilibrium. what effect will increasing the volume of the reaction mixture have on the system?
what is the longest wavelength of radiation that possesses the necessary energy to break a nitrogen bond.
she observed the formation of a large volume of precipitant while trying to dissolve copper sulfate in the irrigation water from the well on her farm (which contains high levels of hydrogen sulfide). What explanation can you provide for this obser..
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