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Calculate the frequency of the light emitted by hydrogen atom during transition of its electron from n=6 to the n=3 principal energy level.
A round bottom flask containing 30g of water at 25 C is attached to a vaccum line. The pressure in the flask is reduced until water in the flask begins to boil. Under these circumstances determine if G, H, S sys, S total are positive, negative or ..
For the first-order reaction below, the initial concentration of A is 0.240 M. If the concentration of A decreases to 0.0800 M after 21.8 hours, what is the half-life of the reaction
If 4 liters per minute of 100 ppm 1,1,2-trichloroethane solution is to be reduced by 99% in a diffused air CSTR, what air flow is required if equilibrium is assumed. What air flow is needed for 90% removal
A student is required to generate 90.0 mL of carbon dioxide at 750 mm Hg and 21C using potassium hydrogen carbonate and HCl. What is the mass of the potassium hydrogen carbonate needed?
Assuming that none of the intermediates have appreciable concentrations, what are the values of C61206, O2, CO2, and H20, given that the overall rate is 1X10^-4 mol/L*S. Assume there is an excess of oxygen in the system.
what chemical reaction could you perform to promote the aqueous solubility of hexyl amine? write an equation why is the
Is there enough info to calculate the pressure of gas if the barometric pressure is 755 torr and if so what is the answer
Draw the structure of the product that is formed when methylbenzene is treated with the following reagents:1) NBS, heat; 2) Mg; 3) Ethylene oxide
What IR peaks of your cyclohexanone product are characteristic of the ketone group? What IR peaks of cyclohexanone will indicate it is impure? for a carboxylic acid, such as adipic acid?
draw the molecule 1-(4-methoxyphenyl)-2-methylpropan-1-ol. number the carbons on the molecule and identify all the functional groups characterized by the molecules name.
What would happen if bezaldehyde react with a high (50%) concentration of sodium hydroxide in the absence of acetone via aldol condensation
a solution contains a mixture of pentane and hexane at room temperature. the solution has a vapor pressure of 258 torr.
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