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You have 10 mL of .2 M sodium acetate and 1 mL of .1 M HCl, and 9 mL distilled water. Divide the solution in half In one half, add .5 mL .1 M HCl, the other half, add .5 mL .1 M NaOH. Calculate the pH before the two additions and after.
Determine the net work done and net heat interaction - determine the degree of conversion of CO(g).
An electron in the n=4 energy level of a He+ atom could be in any number of degenerate energy states or orbitals. List all of the possible values of the 1 and m1 quantum numbers for n=4, identify the 1 values in terms of the usual letters
The first-order rate constant for the decay of the radioactive isotope carbon-14 is 1.2 x 10-4 year-1. What fraction of the carbon-14 initially in a sample is still present 1500 years later
If you start with 5.0mL of isopentyl alcohol and after esterification via glacial acetic acid you obtain 6.2mL of isopentyl acetate
If a contemporary wooden chair were somehow preserved to for the next 3,900 years, what C-14 dacay rate should be expected from the wood used to make the chair? (t1/2 = 5730)
start with 4-cyclopentylphenol and react with NaOH, CH3I, NBS, heat show each step to get the final product.
1.27 (singlet, 6H); 2.12 (triplet,2H) and 4.26 (triplet, 2H). Determine the structure of the product and draw complete mechanism to show how it is formed.
The difference in chemical potential between two regions of a system is +7.1 kJ/mol. By how much does the Gibbs free energy change when .10 mmol of a substance is transferred from one region to the other?
Decomp. of SO2Cl2 is first order and has a rate constant of 1.42x10^-4 S^-1. What is the half-life for the reaction. How long will it take to decomp 27.3% of its initial cocentration
Calculate the molalities of the following aqueous solutions. (a) 2.26 M sugar (C12H22O11) solution (density of solution = 1.12 g/mL) m (b) 0.93 M NaOH solution (density of solution = 1.04 g/mL) m (c) 5.64 M NaHCO3 solution (density of solution = 1..
The Km for the reaction of chymotrypsin with N-acetylvaline ethyl ester is 8.8 x 10-2 M, and the Km for the reaction of chymotrypsin with N-acetyltyrosine ethyl ester is 6.6 x 10-4 M.
In preparation of esters given in an experiment, the reaction product was extracted with 5% sodium bicarbonate solution (NaHCO3) in the isolation step. How? What gas was evolved during this washing step?
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