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One kind of electromagnetic radiation has a frequency of 107.1 MHz another kind has a wavelength of 2.12 * 10-10 m as well as yet another type of electromagnetic radiation has photons with energy equal to 3.97 * 10-19 J/photon. Identify each kind of electromagnetic radiation as well as place them in order of increasing photon energy and increasing frequency.
State the equilibrium concentration of each component that makes the solution a buffer solution. Ka = 1.8 x 10-5 for acetic acid.
How many kilowatt-hours of electricity would be saved? b) How many 2,000-lb tons of SO2 would not be emitted. c) If the utility can sell its rights to emit SO2 at $800 per ton, how much money could the utility earn by selling the SO2 saved by a si..
Specific heat, Cs, for Ag is 0.233 Jgˆ-1 Kˆ-1. If temperature of 0.350 mol silver metal changed from 0.00 °C to 26.0 °C, Explain how much heat was absorbed by the silver metal
What happens to the average kinetic energy of the particles in a sample of matter as the the temperature of the sample is increased
Calculate the heat capacity of satan, i. e. Ni . if 30.0g of nickel at 100.0 c raises the temperature of 25.0g of water from 22.0 c to 30.8 c . assume no heat loss to the surroundings
In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV.
Later the student discovered that the percent H2O2 derived from this determination was less than the percents obtained from the second and third determinations, both performed at room temperature. Briefly explain.
Which salts are more effective for cold and hot packs, KNO3, NH4NO3, MgSO4, CaCl2, MgCl2? which are most cost effective? Maximum and minimum T for both?
At 25 C the reaction from Part A has a composition as shown in the table below. What is the free energy change,delta G , in kilojoules for the reaction under these conditions. C2H2(g) 4.15 H2(g) 4.45 C2H6(g) 2.25×10-2 ?G = ??? kj
How many grams of KCl would be required to react with 420 mL of 0.42 M AgNO3 solution?
What product(s) are expected in the ethoxide-promoted β-elimination reaction of 2-bromo-2,3-dimethylbutane? Omit ions, salts
Using the tools you have at hand (a melting point apparatus and TLC setup), what other data could you collect to test your hypothesis from part a? Give two possibilities.
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