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Distillate (condensate) in four separate containers,~1mL in each, during the fractional distillation of 4mL of a (1:1) cyclohexane-toluene mixture, and then obtain IR spectra for each fraction. How would the IR spectrum of the first 1 mL fraction look different from that of the last 1 mL fraction?
Determine what is the observed rate for the given reaction - empirically determined rate
What NaCl concentration results when 219 mL of a 0.740 M NaCl solution is mixed with 492 mL of a 0.350 M NaCl solution?
Calculate thechemical potential of ethanol in solution relative to that of pureethanol when its mole fraction is 0.40 at its boiling point(78.3oC)
At 7645 oC, Keq = 1.12 for the reaction: 1/2 N2(g) + 1/2 O2(g) ? NO2(g) (a) What is the value of Keq for the reaction NO2(g) ? 1/2 N2(g) + 1/2 O2(g)? Keq = . (b) What is the value of Keq for the reaction N2(g) + O2(g) ? 2 NO2(g)? Keq = . (c) What ..
Buffers are typically made by combining a weak acid with its salt or by combining a weak base with its salt. Which of the following will be the other component present in a prepared buffer if one component was NH4Cl?
To qualify to run in the 2005 Boston Marathon, a distance of 26.2 miles, an 18 year old woman had to have competed another marathon in 3 hours and 40 minutes or less. To qualify, what must a woman's average speed have been
KHP is an acid that is monoprotic and hardly hygroscopic. When carbon dioxide reacts with NaOH it produces sodium carbonate. I kind of understand how to do part b but i really don't understand how to do part a.
An electron is confined to a one dimensional box of length L. It falls from the second energy level to the ground state, and releasee a photon with a wavelength of 322 nm
A person breathes 2.6 L of air at -110 C into her lungs, where it is warmed to 370C. What is its new volume?
3NaHCO3 + H3C6H5O7= 3CO2 + 3H2O + Na3C6H5O7 1g of sodium bicarbonate and 1g citric acid are allowed to react. Find the limiting reagent.
The half life of Iodine-131 is 8.0252 days. If 14.2 grams of I-131 is released in Japan and takes 31.8 days to travel across the Pacific
what is the theorectical yield of disulfure chloride? what mass of the excess reactant reamains when the reaction is completed?
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