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A diode laser emits at a wavelength of 987 nm.
(a) In what portion of the electromagnetic spectrum is this radiation found?
(b) All of its output energy is absorbed in a detector that measures a total energy of 0.52 J over a period of 32 s. How many photons per second are being emitted by the laser?
In a synthesis experiment you obtain a sample of product on which you do a melting point determination and find a melting point range of 108.0 to 114.3 degrees Celsius.
A solution is prepared my mixing 40 mL of pentane (C5H12, d = 0.63 g/mL) with 100 mL of hexane (C6H14, d = 0.66 g/mL). Assuming the volumes add upon mixing, Calculate-
What is the maximum mass, in gram, of Fe3O4, that can be produced from this reaction? B)If 3.26 g of Fe3O4 are actually made, what is the percent yield of this process
Choose any one chemical process industry, and describe various types of reactors used in that Industry. Diagrams and neat flow sheets may be included wherever they are relevant The student should critically anlyse the use of a particular type of r..
What volume of glacial acetic acid (1.06g/ml) and what weigh of solid potassium acetate are required to prepare 5 liters of 0.2m acetate buffer, ph 5.0
calculate the percentage of empty space in 1 mole of water at 25 c. obbtain the density from the experiment some
Depict three structures of three sulfur containing acids. Decrease formal charges by expanding sulfur's octet. Include any non-bonded electrons on sulfur only.
What is the [H30+] in the final solution after mixing 0.500 L solution of 0.100M HbrO4(aq) with 0.600L of 0.010M solution of NaOH
Three sparingly soluble salts, MA, MA2, and MA3, all have Ksp = 1.5 x 10-7. Determine which of these three has the highest molar solubility in water? a) MA, b) MA2, c) MA3 ,d) They are all equally insoluble.
Calculate the pOH of a solution that results from mixing 27 mL of 0.11 M ethylamine (C2H5NH2) with 45 mL of 0.11 M C2H5NH3Cl.
Before investigating the scene, the technician must dilute the luminol solution to a concentration of 2.00×10-2 it M. The diluted solution is then placed in a spray bottle for application on the desired surfaces.
A 1.23 mol sample of KOH is dissolved in 425 ml water. find the molarity of the solution
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