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A 4.40 g piece of solid CO2( dry ice) is allowed to vaporize(change to gas) in a ballon. The final volume of balloon is 1.00 L at 300L. What is the pressure of the gas?
Predict the change in energy (J/photon) that occurs when an electron moves from n = 2 to n = 1.
Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid. What is the molar concentration of H3O^+ in a cola that has a pH of 3.120
Have you observed that when you spill water over your skin on a hot day it will cool you down but if you spill vegetable oil in place of water it will not cool you down give explanation for this difference?
what mass of sucrose should be combined with 514 g of water to make a solution with an osmotic pressure of 8.85 atm at
Glycerol, C3H8O3, is a water-soluble liquid of density 1.2656 g/ml at 15oC. Calculate the molarity of a solution of glycerol made by dissolving 40.000 ml glycerol at 15oC in enough water to make 250.000 ml of solution.
Aqueous solutions of 30% (by weight) hydrogen peroxide, H2O2, are used to oxidize metals or organic molecules in chemicals reactions. Given that the density of the solution is 1.11 g/mL, calculate the molality, molarity, and mole fraction.
Rank the following regions of the electromagnetic spectrum in order of decreasing frequency.X rays, Microwaves, Infrared, Ultraviolet A) infrared, microwaves, ultraviolet, x rays B) x rays, microwaves, infrared, ultraviolet C) microwaves, infrared..
Suppose that you designed a spacecraft to work by photon pressure. The sail was a completely absorbing fabric of area 1.0 km^2 and you directed a red laser beam of wavelength 650 nm on it from a base on the moon. What is the (a) force, (b) pressur..
Explain why the elimination reaction in acetone promotes an E2 mechanism while water promotes and E1 mechanism? Which product is more thermodynamically stable, the E or Z isomer?
consider one mole of a real gas constant pressure heat capacity cp of 32.52 jk expanded adiabatically and
Phenolphthalein has a pKa of 9.7. It is colorless in its acid form and pink in its basic form. For each of the pH's listed, calculate the ratio and predict the color
what does find the saturation have to do with consitutuional,stereoisomers, and conformational isomers?
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