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Phosphorus-32 is used in the form of Na2HPO4 in the treatment of chronic myeloid leukemia, among other things.
(a) The isotope decays by ? particle emission. Write a balanced equation for this process.
(b) The half-life of 32P is 14.3 days. If you begin with 4.9 ?g (micrograms) of radioactive 32P in the form of Na2HPO4, what mass remains after 28.6 days (about one month)?
Write a complete stepwise mechanism for the reaction of cyclopentanone with bromine in acetic acid to give 2-bromocyclopentanone. Show all intermediate structures and all electron flow with arrows.
find the contour length (chain length) for a fully extended polythylene molecule that has a degree of polymerization of (n=45000),given that the length of c-c bond is 1.54 Ao.
Calculate the vapor pressure of a solution containing 28.5g of glycerin (C3H8O3) in 125mL of water at 30.0 ?C. The vapor pressure of pure water at this temperature is 31.8 torr.
calculate the maximum number of moles, liters and grams of H2S that can form when 187 g lead sulfide reacts with 140. g water at 29.0 °C and 0.75 atm of pressure.
Why is it important to not look directly at the flame of burning magnesium should the metal ignite during this experiment?
Pour the water into a 24.0 gram beaker and boil off all the water, so only the salt remains. The beaker with salt in it weighs 41.0 grams. What is the % of salt and % of water
The density of helium is .01784g/l at S.T.P. I a given mass of helium at S.T.P is allowed to expand to 1.500 times its inital volume bu changing the temperature and pressure,
Calculate the final temperature of the helium inside the cylinder. Assume helium to be an ideal gas with Cp=(5/2)R.
A 20.0 ml sample of 0.200 M K2CO3 solution is 30.0 ml of 0.400 M Ba(NO3)2 solution. Barium Carbonate precipitates. The Concentration of barium ions, Ba^2+, in solution after reaction is?
Sodium oxalate, Na2C2O4, in solution is oxidized to CO2 by MnO4- which is reduced to Mn2+. A 50.1 volume of a solution of MnO4- is required to titrate a 0.339 g sample of sodium oxalate.
How much Fe++ could be present in water containing 0.4 x 1e-02 M HCO3- (bicarbonate) without causing the precipitation of FeCO3 (Ksp=10**(-10.7))
Write the mechanism for the formation of 4-chlorobenzanilide from the combination of the following reagents:
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