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Explain what is the difference between a percent saturated solution of ammonium sulfate as well as a percent w/v solution of ammonium sulfate?
If a chemist wishes to prepare a buffer that will be effective at a pH of 5.0 and 25C, which of the following would be the best choice for the acid component and WHY
How long would you need to sample from a concentration of 1000 PPM using a flow rate of 50 ml/minute to collect 100 mg of material?
Buffering Action of Proteins, We did this experiment in class but I want to see if the results seem reasonable and, if so, why they were not more varied.
what is the molecular formula for a substance that contains in 1.00 mole of sample 1.00 mole of S, 24.1 x 10^23 atoms of F, and 71.0 grams of Cl
consider a 1g sample of radioactive californium z98 and a245. the half life of this isotope is 45 min. on average how
At 28 ^circ rm C the osmotic pressure produced by the solution was 0.138 rm atm. What is the molar mass of the protein?
how many grams of cu metal 63.55 gmol will be plated out of a cuno32 solution by passing a current of 3.00 amperes for
How many pi bonds and sigma bonds does the chemical compound caffeine has, and where can one get some information on hybrid orbitals on aromatic compounds like benzene and caffeine
Calculate the final temperature of the metal and water mixture, assuming no heat loss to the surroundings.
A solution of water (Kb=0.512 C) and glucose freezes at 4.15. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 .
Calculate the potential delivered by a voltaic cell using the following reaction if all dissolved species are 2.5 x 10 -2 M and the pressure of H2 is 1.0 bar.
What percentage of the Sr-90 that was formed in the detonation of the first fission bombs in August 1945 is still present in the environment in August 1982.
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