The presence of the radioactive gas radon (Rn) in well waterpresents a possible health hazard in parts of the UnitedStates. (a) Assuming that the solubility of radon in waterwith 1 atm pressure of the gas over the water at 30 °C is7.27 * 10-3 M, what is the Henry’s law constant for radon (c) The free-base form of cocaine has a solubility of 1.00 g in6.70 mL ethanol (CH3CH2OH). Calculate the molarityof a saturated solution of the free-base form of cocaine inethanol.(d) The hydrochloride form of cocaine has a solubility of1.00 g in 0.400 mL water. Calculate the molarity of a saturatedsolution of the hydrochloride form of cocaine inwater.(e) How many mL of a concentrated 18.0 M HCl aqueoussolution would it take to convert 1.00 kilograms(a “kilo”) of the free-base form of cocaine into its hydrochlorideform?
The presence of the radioactive gas radon (Rn) in well water
presents a possible health hazard in parts of the United
States. (a) Assuming that the solubility of radon in water
with 1 atm pressure of the gas over the water at 30 °C is
7.27 * 10-3 M, what is the Henry’s law constant for radon (c) The free-base form of cocaine has a solubility of 1.00 g in
6.70 mL ethanol (CH3CH2OH). Calculate the molarity
of a saturated solution of the free-base form of cocaine in
ethanol.
(d) The hydrochloride form of cocaine has a solubility of
1.00 g in 0.400 mL water. Calculate the molarity of a saturated
solution of the hydrochloride form of cocaine in
water.
(e) How many mL of a concentrated 18.0 M HCl aqueous
solution would it take to convert 1.00 kilograms
(a “kilo”) of the free-base form of cocaine into its hydrochloride
form?
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