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Explain why do you get 2 peaks instead of 3 for the 3-bromopentane nmr spectra after a sn2 reaction of 2-pentanol with HBr and H2SO4?
What volume (L) of H2 at 745 torr and 20.oC can be prepared from 4.8 g of water? (Atomic weights: Fe = 55.85, O = 16.00, H = 1.008; 1 atm = 760 torr).
Make the phase diagram for benzene near its triple point at 36 Torr and 5.50 degrees C using the following data dH fusion= 10.6 kj/mol, dH vap = 30.8 kj/mol, solid state density = 0.891 g/cm3, liquid state density = 0.879 g/cm3
Estimate the molecular diameter of methane (CH4) from the tabulated van der Waals constants in Atkins.( viscosity measurement would suggest a diameter of 0.414nm)
what is the maximum number of electrons that can be accommodated in a all the 5g orbitals 8. b all the 6f orbitals and
Predict what a plot of temperature versus the volume of distillate will look like for the simple distillation and the fractional distillation of (a) a cyclohexane-toluene mixture and (b) an ethanol-water mixture.
What volume of distilled water do you need to add to dilute 1 mL of a 100 mM Tris-HCl buffer solution to a concentration of 1 mM
Inspect the table of polyatomic ions and determine what happens to the charge on the polyatomic ion, phosphate when an H+ is added to the formula? What is the new name
Detailed calculations show that the value of Z eff for the outermost electrons in Na and K atoms is 2.51+ and 3.49+ , respectively. What value do you estimate for Zeff experienced by the outermost electron in both Na and K by assuming core electro..
30 mL of 0.25 M acetic acid are titrated with 0.05 M KOH. What is the pH after addition of 75 mL KOH
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6(g)+H2(g) 2CH4 the standard change in Gibbs free energy is
question which of the binary compounds formed by the following pairs of elements contain polar covalent bonds?c and hna
next titrates an unknown sample with this DCP solution and reaches the end point at 40.5 mL. How many mg of ascorbic acid were present in the unknown sample
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