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State mechanism of aniline to acetanilide using ethanoic acid and ethanoic anhydride, then write mechanism of acetanilide top-bromoacetanilide using bromine, then state mechanism of p-bromoacetanilide to 4-bromoaniline using NaOH & HCl.
A 126 piece of metal is heated to 285 and dropped into 83.0 of water at 26. If the final temperature of the water and metal is 58.3.
the rate of effusion of a particular gas was measured and found to be 24.0 mlmin. under the same conditions the rate of
Calculate the work associated with the expansion of a gas from 152.0 L to 189.0 L at a constant pressure of 11.0 atm.
The stock solution is 500 ?g/mL and you want to obtain a final concentration of 1?M. What volume of the stock solution do you need to make 10 milliliters of the 1 ?M solution? Also: What is the molar mass of PMA?
For the following reaction at 298.2 K, 2 CO(g) + O2(g) ---> 2 CO2(g) calculate deltaS(universe) given deltaS(system) = -173.1 J/K and deltaH?(system) = -566.0 kJ.
magnesium has three isotopes mg-24 mg-25 and mg-26. the percentage abundance of each in order is 78.70 10.13 11.17.
a sample of ideal gas at room temperature occupies a volume of 23.0l at a pressure of 232torr . if the pressure changes
write a balanced chemical equation for the reaction mg hcl. given that 1 mole of mg produces 1 mole of hydrogen h2 what
2.20g of solid NaOH are added to 250ml of 0.10M FeCl2 solution. Given that Ksp for Fe(OH)2 is 1.6x10^14, calculate the following. The weight of Fe(OH)2 formed
Compute the number of moles of each reactant. Find out the limiting reactant in each of the following three reactions.
The mass of a hydrated CaSO4• X H2O sample is 3.08 g. After heated gently for 20 min, the mass of the sample reduces to 2.72 g (water is completed removed by heating and only CaSO4 is left). How many H2O (X) are in CaSO4• X H2O
1.9 In the spectrum of atomic hydrogen, several lines are generally classi?ed together as belonging to a series (for example, Balmer series, Lyman series, Paschen series), as shown in Fig. 1.28. What is common to the lines within a series that mak..
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