Atopaz crystal has an interplanar spacing (d) of 1.36 å (1 å =1×10^[−10] m). calculate the wavelength of the x-ray that should be used if θ = 15° (assume n = 1).

7.0*10-11m or 70Å

Explanation:

From Bragg's equation, w=2dsinx/n

Since all the parameters are specified in the question, we can easily go ahead to obtain the wavelength but we must convert the spacing given in angstroms to meters using the conversion factor provided as shown in the solution below:

fe 55.85 g/mol and h2o 18.02 g/mol.