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Benzene is often produced as a by-product during the synthesis ofphenylmagnesium bromide. How can its formation be explained? Writea balanced chemical equation for the formation of benzene.
Determine At what temperature does C 6 H 6 boil when the external pressure = 470 torr?
Sodium carbonate (\rm Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 3.02×103 kg of sulfuric acid solution
Consider a Carnot Cycle that operates between heat-reservoirs temperatures of 200 C and 50 C. If 200 kJ of heat is added for the first stage of the cycle, determine the (1)thermal efficiency, (2) the work done per cycle,
Potassium-40 decays to argon-40 with a half life of 1.27E^9 yr. what is the age of the sample that has a mass ratio of 40 Ar to 40K of 0.712
which of the following reactions are redox reactions? for those reactions that are redox reactions identify the
which produce no significant response to interfering ions. It is then used to measure the pH of 0.0100 M NaOH in 0.50 M NaCl at 25 degrees C. What is the observed pH under these conditions if the true pH is 1.13?
How is electronegativity used in determining ionic and covalent character of the bonding between two elements. And how do you tell if between two componds which is more ionic/covalent
In the following reaction, C2H5OH + 3O2 → 2CO2 + 3H2O, if 54 grams of water is produced, how many grams of C2H5OH is needed for the reaction.
The volume of a mass of gas is 300ml at 25 degree celcius and 685 torr.
Calculate how much heat is released when this reactions occurs at a constant temperature of 25.00 degree Celicus in a constant-volume container.
Solve an equilibrium problem (using an ice table) to calculate the pH of each solution. A solution that is 0.20 M in HCHO2 and 0.14M in NaCHO2
Two solutions of an unknown slightly soluble salt, A(OH)2, were allowed to equilibriate- one at 25 degrees C, the other at 80 degrees C. A 15 mL aliquot of each solution is tiotrated with .200 M HCl. 8 mL of the acid is required to reach the endpo..
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