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Particles and Waves
The diffraction of radiation can be used to determine the spacing between atoms. In practice, the wavelength of the radiation used should be restricted to a value which is of the same order of magnitude as the interatomic distances to be determined. Such experiments are commonly performed using X-rays (electromagnetic radiation), however a beam of subatomic particles, such as of neutrons or electrons, may also be used if their corresponding de Broglie wavelength is of the appropriate magnitude.
Calculate the de Broglie wavelength of a neutron (mn = 1.67493×10-27 kg) moving at one eight thousandth of the speed of light (c/8000).
(Enter at least 4 significant figures.)
Calculate the velocity of an electron (me = 9.10939×10-31 kg) having a de Broglie wavelength of 180.1 pm.
Can anyone please explain me in detail what the solution is and what is one eight thousand of speed of light? is it (2.9927x10^8/8000)?
Are there any other particular ones more important or can some of them actually have a harmful effect on the human body.
The compound AX2 decomposes according to the equation, 2 AX2(g) => 2 AX(g) + X2(g). In one experiment, [AX2] was measured at various times, and these data recorded
The Tl in a 9.76 g sample of rodenticide was oxidized to the trivalent state and treated with an unmeasured excess of Mg/EDTA solution. The reaction is Tl3+ +MgY2-> TlY- + Mg2+
Calculate the amount of solution (g or mL) that contains each of the following amounts of solute. Express the answer to two sig fiugres and include the appropriate units.
What mass of potassium bromide residue remains if 500.0 mL of 0.200 M potassium bromide solution are evaporated to dryness.
The second container is kept at 149.2 K. What is the volume (in liters) of nitrogen gas in container 2? Containers are kept at a constant pressure.
Name the stereoisomers formed by oxidation of (S)-4-methylcyclohexene with osmium tetroxide.
The average distance between Mars and Earth is 1.3 x 10^8 miles. How long will it take a picture transmitted from the Viking space vehicle on Mars' surface to reach Earth
explain how to identify a molecular compound based on a: chemical formula and on a systematic name
What is the difference in the stereo chemistry of the reaction when darzen process is carried out in the presence or abseabsence of pyridene
A solution contains 0.063g of oxalic acid, H2C2O4*2H2O, in 250 mL. What is the molarity of this solution?
Determine the boiling point of a solution that contains 78.8 g of naphthalene (C10H8) dissolved in 722 mL of benzene (d = 0.877 g/mL). Pure benzene has a boiling point of 80.1°C and a boiling point elevation constant of 2.53°C/m.
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