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An old bottle of aspirin that is past its half life has a vinegary smell when opened due to decomposition of the aspirin from exposure to moisture. Define and write the equation and mechanisms for the decomposition reaction that occurs with aspirin in water?
What mass of sucrose should be combined with 493 g of water to make a solution with an osmotic pressure of 9.00 atm at 320 K? (Assume the density of the solution to be equal to the density of the solvent.)
What is the initial concentration of the Fe2+(aq) solution?
in the electrolysis of aqueous solution of Na2SO4, what reactions occur at the anode and the cathode. explain
We know that 100 cm3 of the mixture measured at 25C as well as 750 mm yields 84.5 cm3 of dry oxygen measured at 25C and 750mm after passage over CuO as well as the drying agent. Explain what is the original composition of the mixture. State balanc..
Explain possible reason for discrepency between the actual pH of the buffer and the reported pKa of the weak acid. (My case: actual pH =9.23, reported pKa =9.25)
an unknown molecule contains only iodine and fluorine and it is 57.2 i by mass. what is the electron domain geometry of
Equal volumes of 1 x 10-4 M solutions of Cd2+ and CO32- ions are mixed in one flask and equal volumes of 1 x 10-4 M solutions of Ag+ and CrO42- ions are mixed in a second. Which substances precipitate given that the Ksp values of CdCO3 and Ag2CrO4..
The pressure on a gas at -77 deg. C is doubled, but it's volume is held constant. What will the final temperature be in degrees C
Define how this mechanism leads to racemisation. Propose a name for the mechanism that is operating here as well as explain the meaning of the term racemic
If a sample of dry nitrogen occupies 447mL at STP. Define what would its volume be if it were collected over water at 26 degrees Celsius and 750torr
An atmoshperic sample contains nitrogen at 599 torr, oxygen at 154 torr, argon at 6 torr, and carbon dioxide. Assuming standard pressure, what is the partial pressure of carbon dioxide gas
suppose you had a detection device that could count every decay from a radioactive sample of plutonium-239 t12 is 24000
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