Fewpal
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Calculate the relative rates of diffusion of 235UF6 and 238UF6 in the gaseous state (At. mass F =19).

(1) 1.0043 : 1.0000 

(2) 1.0000 : 1.0043

(3) 1.349 : 1.352 

(4) 1.352 : 1.349

1 Answer

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Correct Answer is: (1) 1.0043 : 1.0000 

Mol. mass 235UF6 = 235 + 6 × 19 = 349

Mol. mass 238UF6 = 238 + 6 × 19 = 352

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