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Calculate the magnitude of the diffusion-controlled rate constant at 298 K for a species in
(i) water,
(ii) pentane.
The viscosities are 1.00 × 10-3 kg m-1 s-1, and 2.2 ×10-4 kg m-1 s-1, respectively.
what is the empirical formula of a compound that is 62.0% C, 10.4% H, and 27.5% O by mass
What are the respective concentrations (M) of Na and SO4 ions formed by dissolving 0.600 mol Na2SO4 in 135 mL water?
Problem- When 1318 J of heat energy is added to 40.4 g of ethanol, C2H6O, the temperature increases by 13.3 °C. Calculate the molar heat capacity of C2H6O.
Compute the pH of 0.100L of a buffer solution that is 0.25M in HF and .50M in NaF. Explain what is the change in pH on addition of the following
on a smoggy day in a certain city the ozone concentration was0.50 ppm by volume. calculate the partial pressure of
Which of the subsequent pairs of compounds would be most easily separated by thin layer chromatography: n-octyl alcohol and1-octene, hexadecane and octadecane or chlorobenzene and bromobenzene
The half-life of carbon-14 is 5,730 years. If you started with 100.0 g of carbon-14, how much carbon-14 would remain after 4 half-lives.
what is the rate constant for this reaction at 398 K ? I know that the answer is 1.2 s-1 but I don't know how to get it . Can anyone explain it to me please?
Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432 years . How long will it take in years for 40.0 % of an Am-241 sample to decay
the preparation of the esters given in this reaction, the reaction product is extracted with 5% sodium bicarbonate solution (NaHCO3) in the isolation step
a solid substance a is soluble in water to the extent of 10 mgml of water at 25 degrees c and 100 mgml of water at 100
When he measured the concentration of products and reactants (not at equilibrium) under the conditions of human body temperature as 2 micromoles of products and 17.3 micromoles of substrates, what was the current free energy difference at that poi..
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