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Offer an explanation for that fact that bromine adds to 2,3-dimethyl-2-butene 920,000 times faster than to ethylene, to produce the respective dibromides
A buffer solutions contains .120 M acetic acid and 0.150 M sodium acetate. How many moles of acetic acid and of sodium acetate are present in 50.0 ml of solution ? = 0.0075 moles.
A steady current was passed through molter CoSO4 until 8.85 g of metallic cobalt was produced. Calculate the number of coulombs of electricity used.
The standard enthalpies of combustion for ethanol and dimethyl ether are -1367kJ mol-1 and -1460kJ mol-1, respectively, at 298K. what is delta U at 298K for the purposes below:
Write a detailed mechanism for the reaction of salicylic acid with acetic anhydride, showing clearly the function of the catalyst, sulfuric acid.
Suggest reasons why recrystallization from water would probably not be suitable procedure for purifying
A 28.7 g sample of ethylene glycol, a car radiator coolant, loses 676 J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)? =°C
Indole is a competitive inhibitor of chymotrypsin. In the absence of the inhibitor, chymotrypsin will very slowly hydrolyze glycine residues in proteins, but will hydrolyze aromatic amino acids. In the presence of indole
Predict the sign of the entropy change in the system for each of the following processes, and explain your answers. 1) AgI precipitates from a solution containing Ag+ and I- ions.
If 5.00 grams of dry nitrogen dioxide gas (made wet because it was collected over water) were placed in a 5.00-L container, what will be the final pressure (in torr) in the container when the reaction is complete. Given: P of water = 23.76 torr at ..
A volume of 60.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4)What was the molarity of the KOH solution
Consider the reaction CH3Br(aq) + OH-(aq) ? CH3OH(aq) + Br-(aq). How would each of the following changes affect the rate of the forward reaction? a) addition of OH-? b) decrease in volume of the solution
Using your knowledge of hydroboration/oxidation mechanism, predict major and minor products
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