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The hydrolysis of acetylcholine is catalyzed by the enzyme acetylcholinesterase, which has a turnover rate of 25,000 s^-1. Calculate how long it takes for the enzyme to cleave one acetylcholine molecule.
an aluminum rod at 55.0 degrees celsius is put into 399 grams of water at an initial temperature of 20.0 degrees celsius. If the final temperature of water and rod are 30.0 degrees celsius, what was the mass of the aluminum rod?
What is the purpose of adding sodium sulfate to the organic layer after all of the extractions are complete?
If a gas is collected over water at 30.0oC in a 50.0 ml container and the pressure of the "wet" gas is found to be 645 torr, what would the pressure of the "dry" gas be in the same container and temp.
Consider 3 amino acids A, B, and C. How many trimeric isomers would be formed. Show them.
How can you decide whether an observed property of matter is a physical or chemical property
Explain why wet hair placed in curlers that is allowed to dry tends to retain the shape of the curl.
The space shuttle orbiter utilizes the oxidation of methyl hydrazine by dinitrogen tetroxide for propulsion.4 N2H3CH3(l) + 5 N2O4(l) 12 H2O(g) + 9 N2(g) + 4 CO2(g)
A reaction mixture initally contains 0.56 atm CO2 and 0.32 atm CO. Determine the equilbrium pressure of CO if Kp for the reactions at this temperature is 2.25?
How many grams of CaCl2 would be dissolved in 1.2 L of a 0.10 M solution of CaCl2?
Write the half reactions and the blanced equation for the galvanic cell: Ag(s) | AgCl(s) | Cl^-(aq) || Cl^-(aq) | Hg_2Cl_2(s) | Hg(l).
Many scientists and business professionals describe the achievement as a turning point. Provide a summary of what took place during the project and why such activity is significant for us today.
Explain why the balloon would float when heated. Make sure to discuss which factors change and which remain constant, and why this matters. Be complete.
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