Draw energy diagram to explain why pyridine is nucleophile
Draw an energy diagram that explains why pyridine is a better nucleophile AND leaving group in the following reaction:
RCOCl + pyridine --> RCO(pyridine) + Cl-RCO(pyridine) + ROH --> RCOOR + (pyridine-H)+
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Concentrated sulfuric acid has a concentration of 18 M. How much concentrated sulfuric acid would be needed to make 255 mL of 1.0 M sulfuric acid?
A 0.5078g sample of impure nitrobenzene was treated with 1.044g of tin. when the reaction was complete, the residual tin was found to weight 0.338g. Calculate the percentage of nitrobenzene in the sample.
The vapor pressure of chlorine dioxide (ClO2 ) is 155 Torr at -22.75 ?C and 485 Torr at 0 ? C. What is the normal boiling point of chlorine dioxide? The universal gas constant is 8.314 J K/mol .
Biological organisms live at great depths in the ocean and they have adapted their bodies to survive at extreme temperatures and pressures in the dark. One of the adaptations is to equilibrate their internal pressure with the external pressure. Ca
Draw an energy diagram that explains why pyridine is a better nucleophile AND leaving group in the following reaction.
The vapor pressure of CH3 COCH3 (propanone or acetone), is 67 Torr at 0 ? C and 222 Torr at 25 ?C. What is the standard enthalpy of vaporization of propanone? Answer in units of kJ/mol.
Calculate the standard emf of a cell that uses the Mg/Mg^2+ and Cu/Cu^2+ half-cell reactions at 25 degrees celsius. Write the equation for the cell reaction that occurs under standard-state conditions.
A calorimeter contains 34.0 mL of water at 13.5, ^{circ}C. When 1.80 g of rm X (a substance with a molar mass of 70.0 g/mol) is added. Calculate the enthalpy change, Delta H.
Suppose you have 0.001 M solution of a dye with pka of7.2. from the color, concentration of protonated form is found to be 0.0002 M. Assume remainder of the dye is in the deprotonated form. What is the pH of the solution?
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