Under certain conditions, a zeolite with the ZSM-5 framework and formula NaAlSi 23 O 48 (A) can

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Under certain conditions, a zeolite with the ZSM-5 framework and formula NaAlSi23O48 (A) can be synthesized. In the presence of (CH3CH2CH2)4NOH it is possible to prepare a material (B) with an extremely similar X-ray-diffraction pattern and the elemental composition N 0.86%, C 8.86%, H 1.73%, Al 1.66%, Si 39.70%, O 47.19% by weight. On heating to 500°C B loses 11.39% of its mass to form C.

(a) Calculate the empirical formula of B from the elemental analysis.

(b) Given the similarity in the X-ray-diffraction patterns of A and B, suggest a sensible chemical formula for B.

(c) Calculate the empirical formula of C.

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Solid State Materials Chemistry

ISBN: 9780521873253

1st Edition

Authors: Patrick M. Woodward, Pavel Karen, John S. O. Evans, Thomas Vogt

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