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Calculate q, and determine whether heat is absorbed or released when a system does work on the surroundings equal to 64 J and ?U = ?213 J.
what is the net cost in terms of ATP when 3 molecules of glucose are directed to the pentose phosphate pathway at the level of glucose 6- P rather than continuing through glycolysis?
What force keeps the gases of the earth's atmosphere from diffusing into interplanetary space, where the pressure is essentially zero?
What final temperature, in degrees celcius, is needed to change the volume of the gas to each of the following, if n and P do not change?
Hydrocarbon chemistry problems, For the compound, 1,2-dibromoethane, the most stable conformation would be
In a reaction involving reactants in the gas state, how does increasing the partial pressures of the gases affect the reaction rate
A sample of methane gas at a pressure of 0.801 atm and a temperature of 26.9oC, occupies a volume of 687 mL. If the gas is allowed to expand at constant temperature until its pressure is 0.438 atm, the volume of the gas sample will be
A 1-L flask is filled with 1.10g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.25amt .What is the partial pressure of argon, in the flask? What is the partial pressure of ethane in the flask.
prepare a schematic diagram of the work up procedure, including the column chromatography with acetylferrocene, diacetylferrocene, ferrocene
Two solid forms of elemental sulfur (S8) are rhombic and monoclinic, denoted A and B, respectively. For the transformation S8(s,A) --> S8(s,B), dH* = 330 J/mol and dS* = 80 J/mol*K.
Elements from the alkali metals will combine in what ratio with the chalcogens. Covalent bonding is showing what type of interaction between electrons
David J hooper weighs out 13.1 grams of salicylic acid in a 250 mL flask and adds 7.5 mL of acetic anhyride (density=1.080 g/mL) Determine the max (theoretical number of grams) of acetlysalicylic acid he can prepare
What are some of the considerations for the optimal chain length in glycogen? a) Optimal chain length is a compromise between number of available ends, and the need for debranching enzyme
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