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With the help of the sawhorse representations and newman projections illustrate the stereochemistry of the products from the E2 dehydrobromination of (R,R) and meso-(R,S)-2,3-dibromobutane
a carnot cycle uses 1.00 mol of a monatomic perfect gas as the working substance from an initial state of 10.0 atm and
The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.8. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.75 M B(aq) with 0.75 M HCl(aq).
How much heat can be obtained by burning 14 pounds of propane? (Remember to look at this from the viewpoint of the surroundings, since the question asks how much heat can be OBTAINED.)
Which of the following has the greatest buffer capacity. a) 0.40 M CH3COONa/0.20 M CH3COOH, b) 0.40 M CH3COONa/0.60 M CH3COOH, and c) 0.30 M CH3COONa/0.60 M CH2COOH.
chemical potential that is 1.00 KJ mol lss than an ideal gas under the same conditions. What kind of intermolecular forces dominate the system? what is the fugacity of the gas?
density measurements can be used to analyze mixtures. for example the density of solid sand without air spaces is about
Which of the following gases has the largest Henry's law constant, Kh, for dissolution in water at room temperature and why
Given the following equation. What is the maximum mass of FeO3 that can be prepared when 360.0g of FeS2 are mixed with 47.5g of oxygen gas? A balanced equation is this: 4 FeS2 (s) + 11 O2 (g) ----> 2 Fe2O3 (s) + 8 SO2 (g)
Some aromatic compounds also undergo nucleophilic substitution, propose a mechanism for this reaction and indicate what types of substituents would be expected to be most reactive
All of the sulfate ion is in the precipated as barium sulfate. the mass of Barium Sulfate 0.5032g . What is the average mass of saccharin per tablet ? What is the % mass of saccharin per tablet?
When a 58.4 nm radiation is directed on a sample of Krypton, electrons are ejected with a velocity of 1.59x106 m/s. What is the ionization energy of the Krypton
what mass of titanium displaces 65.2 ml of water at 25 circ rm
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