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draw the Skeletal structure of (2R,3R)-dibromosuccinic acid ((2R,3R)-2,3-dibromobutanedioic acid) (show one wedge bond, one dashed bond, and two sticks attached to the chiral carbon. Show the hydrogen atom bonded to the chiral carbon atom as either a wedge or dash to establish stereochemistry. Do not show other hydrogen atoms.)
What is the Kb of C5H5N? The pH is 10.82 and the amount of C5N5N is 1.0X10^-3
You are titrating 50.0ml of a 2.64M benzoic acid solution with a 0.445M potassium hydroxide solution.
The pH of a dimethylamine aqueous solution is 11.98. (CH3)2NH + H2O ? (CH3)2NH2+ + OH-, The dimethylamine solution is 0.146 M a) Calculate the Kb value for dimethylamine.
When 5.00 g of fructose, C6H12O6, (FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
Determine the pH at the equivalence (stoichiometric) point in the titration of 52.8 mL of 0.537 M HNO2 by 0.350 M LiOH. The Ka of HNO2 is 4.3 x 10-4.
The half-life of tritium (31H) is 12.3 years. If 55.0 mg of tritium is released from a nuclear power plant during the course of a mishap, what mass of the nuclide will remain after 49.2 years?
A block of alumium with a volume of 91.1cm^3 absorbs 64.6 j of heat. If its initial temperature was 33.7C, what is its final temperature
For the above current at 5.45 V, how much electrical energy (in kw-hr) is consumed in the production of 1 kg of aluminum. (A kW-hr is 3.6 x106 J.)
The enthalpy of combustion of acetylene C2H2 is C2H2(g) + 5/2O2(g) ->2CO2(g) + H2O(l) H°rxn= -1299 kJ Calculate the enthalpy of formation of acetylene, given the following enthalpies of formation H°f[CO2(g)] = -393.5 kJ/mol ,H°f[H2O(l)] = -285.8 k..
Its volume is 2.0 x 10^2 mL and its pressure is 750 torr. what is the molar mass?
suppose you burn exactly 1500 g of benzoic acid c6h5co2h in a combustion calorimeter and find that the temperature of
If a mixture of gases contained 78% nitrogen at a pressure of and 22% carbon dioxide at 345 torr, what is the total pressure of the system?
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