X rays of wavelength 2.63 Å were used to analyze a crystal. The angle of first-order diffraction (n = 1 in the Bragg equation) was 15.558. What is the spacing between crystal planes, and what would be the angle for second-order diffraction (n = 2)?
Answer to relevant QuestionsX rays from a copper X-ray tube (l = 1.54 Å) were diffracted at an angle of 14.228 by a crystal of silicon. Assuming first-order diffraction (n = 1 in the Bragg equation), what is the interplanar spacing in silicon? Nickel has a face-centered cubic unit cell. The density of nickel is 6.84 g/ cm3. Calculate a value for the atomic radius of nickel. Rationalize why chalk (calcium carbonate) has a higher melting point than motor oil (large compounds made from carbon and hydrogen), which has a higher melting point than water, which engages in relatively strong ...The unit cell for nickel arsenide is shown below. What is the formula of this compound? A given sample of wüstite has the formula Fe0.950O1.00. Calculate the fraction of iron ions present as Fe3+. What fraction of the sites normally occupied by Fe2+ must be vacant in this solid?
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