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The Heisenberg uncertainty principle as well holds for energy and time, two complimentary variables. Explain how well can we know the energy of molecular excited states with lifetimes of a)10 micro seconds; b)10 ns and c)10 ps.
write a balanced equation for the reaction of phosphorus trichloride pcl3 with water h2o forming phosphorous acid h3po3
The average concentrations of Bromide in sea water(d=1.024g/ml) and the Dead Sea(d=1.22g/ml) are 0.065 g/l and 0.50 g/l. What is the mass ratio of bromine in the dead sea to that in sea water
liquid water and nitrogen monoxide gas are produced from the reaction of 22.7 grams of ammonia gas with 53 grams of
Consider the following endothermic reaction at Equlibrium; 2 H20(l) 2H2(g)+O2(g) if .5 mol water is added what will happen and why
He finds that the total pressure at equilibrium is 40% greater than it was originally. What is Kc for this reaction?
A 1.0 ounce piece of chocolate contains 15 of caffeine, and a 6.0 ounce cup of regular coffee contains 105 of caffeine.How much chocolate would you have to consume to get as much caffeine as you would from 5.0 cups of coffee?
Calculate the mass percent of the solution. Calculate the molality of the solution. Calculate the molarity of the solution
A solution of KOH is prepared and standardized against 0.5418g KHP. The phenolphthalein endpoint was reached by the addition of 25.91mL KOH. What is the molarity of the KOH solution
Neither serine nor leucine are eluted from the column because the pH of the elution buffer is too low. C. Neither serine nor leucine are eluted from the column because the pH of the elution buffer is too high. D. Leucine will elute first, followed..
Using graphical techniques, calculate the distribution (i.e., the fraction) of chlorendic acid ( in uncharged, mono-anionic and di-anionic forms) at pH 3.5,5.0, and 7.5.
A carbohydrate is a compound composed solely of carbon, hydrogen and oxygen. When 7.7467 g of an unknown carbohydrate( = 180.1560 g/mol) was subjected to combustion analysis with excess oxygen, it produced 11.3546 g CO2 and 4.6481 g H2O. What is i..
a. you are givena cube of silver metal that measures 1.000cm on each edge. the density of silver is 10.5 gcm3. how many
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