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Explain the equilibrium constant of the reaction at this temperature when the starting concentration of H2 is 3.9 M, and the starting concentration of I2 is 3.00 M, and the equilib
The only reagents that you have are 6MHCl and 15M NH3. A mixture contains the three cations Ag+, Cu2+ and Al3+ Propose a procedure for the separation of these cations.
Consider the substance H2O, H3O+ and OH-; or NH4+ and NH3; or SH- and H2S,and explain the relationship between acid strength and formal charge.
Write down two reasonce structures for the nitrate ion (NO2-) and demonstrate the formal charge on each atom in each structure. Do these structures account for the fact that nitrogen bonds are of eq
At 1 bar and 273.15 K a mole of perfect monatomic gas is allowed to expand adiabatically against a constant pressure of 0.315 bars until it doubles its volume.
Determine the number of alkenes products that could reasonably be produced from each of the following compounds under the indicated reaction conditions.
The major product obtained from this reaction is reacted with sodium ethoxide in ethanol at 55°C. Methyl cyclohexane reacts with molecular bromine (Br2) in the presence of light and heat.
A mole of perfect gas expands from the 5 to 1 bar at 298 K. Determine the values of q and w if (a) the expansion is carried out reversibly, and (b) against a constant external pressure of 1 bar? Ex
A mixture contains the three cations Cu2+, Ag+, and Al3+ Propose a procedure for the separation of these cations. Specify what cation(s) are separated at each step of your procedure and
Write down the structures of two chair conformations of 1-tert-butyl-1-methylcycloheane. Explain which conformation is more stable? Why?
Determine the half life of the reaction if a0 = 4 M. Determine and comment on the length of time required for the concentration of Cl2 to decrease from an initial concentration of 4 M to 1.8
Explain what type of intermolecular force accounts for the following differences in each case?CH3SH boils at 6 degrees Celsius, CH3OH boils at 65 degrees Celsius.
The student's body temperature eventually dropped from40oC to 37oC. A feverish chemistry student weighing 75 kg was immersed in the 400 kg of water at 4.0oC in an attempt to reduce the fever.
Calculate the order of magnitude to which the pressure must be reduced so that the electron beam attenuation by electron - H2 collisions is 1/e over the 0.5m length for a cathode ray tube to deliver
What would you expect to see the after the second development if a TLC plate showed two spots at 0.25 and 0.26 Rf. The plate was removed, the residual solvent evaporated and then the plate was retu
Determine the heats of combustion for the following reaction from the standard enthalpies of formation. Express answer in kilojoules.
Borax exists in 3 forms: a pentahydrate, hydrous & decahydrate. Borax is a widely used chemical with such diverse uses as detergents & ant poison. If you were trying to optimize the maximum
Determine the weight of the KCl residue when the 3.00 grams of KClO3(s) is decomposed according to the reaction 2KClO3->2KCl(s)+ 3O2(g)?
A Carnot engine operates among the Tc, 273.15 K and Th, 298.15 K, using 1.00mol of an ideal monatomic gas. During the isothermal expansion step, the volume changes to 50.0L. The initial pressure-vo
Given alkaline, write down a chemical equation showing the equilibrium illustrating its structures below pK1 (pH=1), at pI (pH=6), above pK2 (pH=10).
Sketch all steps in the synthesis of each of the following compounds using only the organic starting material given, plus any needed organic/in organic reagents.
Determine the final temperature when 50mL of water at the 40 degrees C are added to 25mL of water at 20 degrees C
What is the heat capacity of the metal when a piece of metal weighing 10 g at a temp of 38C was placed into the 1.00 mL of water in a calorimeter at the 22C, and the final equilibrium temp was foun
Benzoic acid (C7H6O2, 1.9862 g) was ignited in a bomb calorimeter containing water (2 kg) as the primary heats ink. The temperature increase observed was 3.83oC. The heat of combustion of benzoic ac
Determine how many calories are necessary to raise the temp 50.0 g of methanol from 18 degrees C to 33 degrees C if the heat capacity of methanol is 0.600 cal/g degrees C? How many joules?