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The strongest line in the visible region of the mercury spectrum has a wavelength of 435.8nm. What color does the light appear? What is the energy of a photon associated with this line?
laser beam to read the digital video data off a DVD disk. What is the frequency of this red colored visible light?
what is the flow rate of the gas stream leaving the condenser in mole/ min. hint first calculate the molar flow rate of the conensate and note that rate at which C6H14 an N2 enter the unit must equal to the total rates at which they leave in the t..
How can their efficiency be less than 100% and the Law of Conservation of Energy still be valid? An incandescent light bulb functions because of the flow of electric current. Does the incandescent light bulb convert all of the electrical energy to..
Add 1mg of alcohol dehydrogenase. Assuming all of the ethanol is converted to acetaldehyde, what will the final concentration of NADH be in the solution
A tire has a pressure of 780 mmHg at 27°C. If the tire is heated to 47°C on hot pavement, what the new pressure will be:
nonionic solute in 50.0g of water. The solution freezes at -0.1455 degrees C. what is the molar mass of the solute?
Many people have 900 MHz phones where this refers to the frequency of radiation it uses to communicate. What energy does this correspond to (in joules/photon)
30.0 mL of pure water at 280. K is mixed with 50.0 mL of pure water at 348 K. What is the final temperature of the mixture? Ignore significant figures for this problem.
How many grams of Ca metal are produced by the electrolysis of molten CaBr2 using a current of 30.0 amp for 10.0 hours
The original sample is not pure, but is contaminated with a thermally stable compound. Will the reported mole ratio of CaO to CO2 be too high, too low, or unaffected? Explain
Use the free energies of formation given below to calculate the equilibrium constant (K) for the following reaction at 298 K.
Solve an equilibrium problem (using an ICE table) to calculate the pH of 0.12M HF, 0.12M NaF, and a mixture that is 0.12M HF and 0.12M NaF.
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