There has been a \"recent\" flurry of interest in the possibility of \"cold fusi

Question

There has been a "recent" flurry of interest in the possibility of "cold fusion" of hydrogen atoms (the deuterium isotope) in metallic palladium.^38 The original idea came from the enormous solubility of hydrogen gas in palladium. Palladium metal has an fcc lattice. Hydrogen atoms occupy the octahedral holes. If 70% of the octahedral holes are filled by hydrogen atoms and the lattice does not expand upon hydrogenation, how many grams of hydrogen will be contained in one cubic centimeter of palladium hydride? Compare this to the density of liquid hydrogen in g cm^-3 Comment. (Rieck, D. F. J. Chem. Educ. 1989, 66, 1034.) HKK 4.40

Explanation / Answer

0.07957 g cm-3

0.078 g cm-3

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