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The enantiomeric excess of a mixture of two enantiomers is 82% , with an excess of the (S)-enantiomer. The optical rotation of the pure (S)-enantiomer is +21 °. What would be the observed optical rotation of the mixture?
When coal is burned, the sulfur present in coal is converted to sulfur dioxide (SO2), which is responsible for the acid rain phenomenon. S(s) + O2(g) ? SO2(g) If 1.64 kg of S are reacted with oxygen, calculate the volume of SO2 gas (in mL) formed ..
Outline a detailed scheme utilizing extractions that he can use to separate the mixture back into the pure components before the professor finds out.
The extrapolated literature value of KEQ for the formation of FeNCS^2+ at 25 degrees C and zero ionic strength is 1047. Predict the equilibrium concentration
A beaker with 100 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M . A student adds 6.50 mL of a 0.260 M HCl solution to the beaker. How much will the p..
consider the reactionc2h5oh l 3o2 g --gt 2 co2 g 3 h2o l ?h -1.37 x 103 kjwhen a 24.8-g sample of ethyl alcohol
It is desired to produce an iron-carbon allow that has a minimum hardness of 200 HB and a minimum ductility of 35% RA. Is such an ally possible? If so what its composition and microstructure? If this is not possible explain why.
disubstituted alkene was formed in which the olefinic protons exhibited a vicinal coupling of 9.0Hz in the H NMR. What is the stereochemistry
Which process is accompanied by an increase in entropy?
A 25.0 mL sample of a 0.115 M solution of acetic acid is titrated with a 0.144 M solution of NaOH. Calculate the pH of the titration mixture after 10.0, 20.0, and 30.0 mL of base have been added.
A red laser pointer emits light with a wavelength of 650 nm. A) What is the frequency of the light. B) What is the energy of 1.00 mole of these photons
how many atoms of hydrogen are contained in 35 molecules are butric acid?
How many grams of H3PO4 are in 175 mL of a 3.5 M solution of H3PO4?
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