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The pKa of one of the hydrogens that is attached to one of the nitrogens of the purine guanine is 9.7. If guanine is in a solution that has a pH of 10.2, then what fraction of the guanine molecules would be in the protonated form at this pH?
a biochemical engineer isolates a bacterial gene fragment and dissolves a 10mg sample in enough water to make 30ml of
Question- State the number of electron groups, lone pairs, and use VSEPR theory to determine the shape of the following molecules or ions.
list all possible products of acetaldehyde (ethanal) was reacted with acetone in an aldol condensation
a student placed a mixture of bao and cao in a 1.46 l flask containing carbon dioxide gas at 35.0 degrees celsius and
A person preparing a fish tank uses boiled (and then cooled) water to fill it. When the fish is put into the tank, it dies. Explain.
Four ice cubes at exactly 0 degrees Celsius having a total mass of 52.5 grams are combined with 115 grams of water at 77 degrees Celsius in an insulated container. If no heat is lost to the surroundings, what will be the final temperature of the m..
When performing your experiment, you add your first drop of oleic acid/benzene solution, and a lens forms immediately. What is wrong with your setup
Molar concentration, 2.20g of solid NaOH are added to 250mL of a 0.10M FeCl2 solution. Given that Ksp for Fe(OH)2 is 1.6 x 10 -14, calculate the following
Once 1-butyl-bisulfate is formed, the 1-butanol can act as a nucleophile to form dibutylether. Propose a mechanism for that reaction
A balloon has a volume of 10,500 liters, and the temperature is 15°C. If the temperature were -25°C, what would the volume of the balloon be?
calculate the amount of heat required to completely sublime 20.0 g of solid dry ice rmco2 at its sublimation
Calculate the molarity of the following solution. 2.5 moles of glucose in 5.0L of solution. Express your answer using two significant figures
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