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A fragrance compound with molecular weight of 136 g/mol is to be added to an aqueous solution to form a consumer product. A Henry's Law constant of 3.4*10^4 kPa*kg/mol has been measured for this compound in water at 37 C. What mass of this compound must be added to 1 kg of water to form a mixture above which the vapor pressure (equilibrium partial pressure) of this fragrance is 2 Torr?
draw the lewis structure for the zwitter ion of cysteine, acetylcholine, seratonin, and the carbonate ion?
If 18.4 mL of 0.800 M HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
How many grams of hydrogen chloride can be produced from 350 grams of sodium chloride and 290 grams of hyroden sulfate if the reaction has a yield of 88%?
Complete combustion of a 3.54-g sample of procaine with excess O2 formed 8.58 g CO2 and 2.70 g H2O . Another sample of mass 2.35 g was found to contain 0.279 g of N . The molar mass of procaine was found to be 236.
change in enthalpy at 25 C and 1 atm for the reaction of 5.00 mol of elemental iron with excess oxygen gas?
technetium-99 has been used as a radiographic agent in bone scans. if technetium-99 has a half-life of 6.0 hours
Calculating the rate of disappearance of HCl, The rate of disappearance of HCl was measured for the following reaction
If the initial pressure of iodoethane is 894 torr at 245°C, what is the pressure of iodoethane after three half-lives?
D2O with a mass concentration of 80 mg/cm3 in a 0.10-mm-long absorption cell is found to have a transmittance of 8.3% for infrared radiation of wavelength 6000 nm. Find the absorbance of the solution and the molar absorption coefficient of lysozym..
A compound that is 43.64% P and 56.36% O by weight has a molecular weight of 283.88 g/mol. What is the molecular formula of this compound
the equilibrium constant kc for the reaction has the valueof 4.00 at 500k. if a mixture of 1.00 mol co and 1.00 mol
Distinguish between the kinetics of a reaction and its process towards equilibrium. (Compare/contrast kinetics and equilibrium.)
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