A certain sample of uranium is reacted with fluorine to form a mixture of 235UF6(g) and 238UF6(g). After 100 diffusion steps, the gas contains 1526 235UF6 molecules per 1.000 × 105 total number of molecules in the gas (235UF6 + 238UF6). What is the ratio of 235U to 238U atoms in the original sample of uranium?
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