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My microwave operates at 2450 MHz. What is the wavelength of this radiation in meters, and what is the energy associated with one photon of this radiation in joules?
Find the pH at the equivalence point(s) and the volume (mL) of 0.125M HCL needed to reach the point(s) in titrations
the carbonyl stretching frequency of aliphaticltbgt carboxylic acids in dilute solution is located near 1770cm. this
how do you write the molecular amp net ionic equation for thereaction that occurs when aqueous solutions of lead
consider the combustion of rmh2 g2rmh2 g rmo2 g rightarrow 2rmh2 rmog. if hydrogen is burning at the rate of 0.61 rm
Calculate the wavelength of a photon emitted when the electron in a Li2+ ion relaxes from the n=6 energy level to the n=4 energy level.
Suppose an adult is encased in a thermally insulating barrier so that all the heat evolved by metabolism of foodstuffs is retained by the body. What temperature does her body reach after 3.0 hours
a student begins a kinetics experiment with a solution containing 0.050 starch. at time zero t 0.00 min the student
A 0.358 g sample of KAu(CN)2, has 7.48 x 1020 atoms of Au. How many atoms are in this entire sample?
how many grams of HNO3 must be dissolved to make 25L of a solution that has a pH of 1.5
We wish to lower the freezing point of the water in an automobile radiator to -40 °C. The total mass of water present is 12.0 kg. For which one of the following compounds would we have to use the greatest mass of solute to achieve this
consider the reaction of 215ml 2.15M nitric acid with 26.0 g of solid iron(2) carbonate for the following questions 1. write the balanced chemical equation for this reaction 2. which reactant is the limiting reactnat?
The energy required for the ionization of a certain atom is 3.44 x 10-18 J. The absorption of a photon of unknown wavelength ionizes the atom and ejects an electron with velocity 1.03 x 108 m/s. Calculate the wavelength of the incident of radiatio..
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