Kl is a salt with lattice constant of a = 0.716 nm. Suppose one measures the powder diffraction from a cubic crystal of Kl using Cu Ka X-radiation having wavelength of 2 = 0.154 nm. The positions of the first nine reflections to occur at 20 are as the following. Assume n=1 intensity 20 a) Fill Table#1 and do peak assignment. i.e find (hkl) 20 0 dki = n1/2 sin0 h²+k² +P = a²Idu (hkl) 21.8° 25.200 36.000 42.50 44.50 51.750 56.80 58.450 64.650 b) From the allowed (hkl) planes that you have obtained, identify the expected crystal structure?
Kl is a salt with lattice constant of a = 0.716 nm. Suppose one measures the powder diffraction from a cubic crystal of Kl using Cu Ka X-radiation having wavelength of 2 = 0.154 nm. The positions of the first nine reflections to occur at 20 are as the following. Assume n=1 intensity 20 a) Fill Table#1 and do peak assignment. i.e find (hkl) 20 0 dki = n1/2 sin0 h²+k² +P = a²Idu (hkl) 21.8° 25.200 36.000 42.50 44.50 51.750 56.80 58.450 64.650 b) From the allowed (hkl) planes that you have obtained, identify the expected crystal structure?
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Transcribed Image Text:Kl is a salt with lattice constant of a = 0.716 nm. Suppose one measures the powder
diffraction from a cubic crystal of Kl using Cu Ka X-radiation having wavelength of
2 = 0.154 nm.
The positions of the first nine reflections to occur at 20 are as the following. Assume n=1
intensity
20
a) Fill Table#1 and do peak assignment. i.e find (hkl)
20 0 d, = na/2 sin0 h² + k² + 1² = a²ldu
(hkl)
21.8°
25.200
36.000
42.50
44.50
51.750
56.8°
58.450
64.65°
b) From the allowed (hkl) planes that you have obtained, identify the expected crystal
structure?
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