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High levels of ozone (O3) make rubber deteriorate, green plants turn brown, and cause people to have difficulty breathing. Calculate delta G at 298 K for the formation of 1 mole of O3 from O2 in urban smog, where [O2]=0.210 atm and [O3]=5.00x10^-7 atm.
Octane has a density of .692 g/ml at 20 degrees Celsius. how many grams of O2 are required to burn 1.00 gal of C8H18.
a gaseous compound is composed of 85.7% by mass carbon and 14.3% by mass hydrogen. its density is 2.28 g/L at 300 K and 1.00 atm pressure.determine the molecular formula of the compound.
At a temperature of 425 0C and a pressure of 735 mmHg, how many grams of {NH_3} can be produced when 4.40 L of {NO_2} react.
How many photons are contained in a burst of yellow light (589 nm) from a sodium lamp that contains 609 kJ of energy
napthalene lowered the freezing point of the solvent by 0.780K. Calculate the molar mass of the compound. [Kf of napthalene= 6.94 K*kg/mol]
dissolved in enough water to make 250.0 mL of solution. Write the hydrolyis reaction for the ion that controls the pH, and calculate the pH
Will there be any precipitate in the following situations? If so, then what compound will be the precipitate? Justify your answers. A) 23 micrograms of strontium chloride, SrCl2 is dissolved in 1.50L of 0.0088M ammonium fluoride, NH4F solution
53.5 g of an ideal gas of molecular weight = 30.5 g/mol are confined at a pressure of 133 mmHg. The density of the gas is 0.228 g/L. Compute the temperature of the gas in degrees Celsius.
Calculate the pH of a solution prepared by dissolving 0.15 of sodium benzoate and 0.3 of benzoic acid in water sufficient to yield 1L of solution.
Calculate ?H, q and w when 1.00 mol of helium at 5.00L and a temperature of 298.15K is expanded and heated simultaneously
Concentrated ammonia is added to an aqueous solution of copper(II) sulfate. Initially, a white precipitate forms. As more ammonia is added, the precipitate dissolves and the solution becomes a deep bluish-purple
A solution of acid was found to have a hydrogen ion concentration of 0.03 mol dm-3 what is the pH of the solution?
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