Calculating the molarity of the solution
Commercial concentrated aqueous ammonia is 19.7% NH3 by mass. The solution has a density of 0.900 g/mL. Calculate the molarity of the solution, molality of the solution, and mole fraction of NH3.
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Explain, with the help of a suitable clearly-labeled diagram, the difference between molecular fluorescence and phosphorescence. Your explanation should include discussion of the time frames involved.
Write the complex number 6(cos 330 degrees + i sin 330 degrees) in rectangular form. Please show all of the work.
In 4-6 sentences, compare and contrast a process costing system and a job order costing system. In other words, provide both similarities and differences between the two costing systems.
Write the complex number in trigonometric for r(cos θ + i sin θ), with θ in the interval [00, 3600).
Find the cubed roots of 27i. (So n=3) Answer should be in standard form. Use 27 cis (90 degress), which is the trigonometric from of 27i, to do the problem.
The Seattle Corporation has been presented with an investment opportunity which will yield end-of-year cash flows of $30,000 per year in Years 1 through 4, $35,000 per year in Years 5 through 9, and $40,000 in Year 10.
Explain the fundamental difference between singlet and triplet state. From this fundamental difference explain why phosphorescence takes at least 100,000 times more to occur than fluorescence.
The company's overall WACC is 10 percent. However, the proposed project is riskier than the average project for Parker; the project's WACC is estimated to be 12 percent.
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