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Pure 235U has a molar mass of 235.0439299 g. What is the mass of a single...

Pure 235U has a molar mass of 235.0439299 g. What is the mass of a single 235U atom in grams?

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Answer #1

We know that molar mass means the mass of 1 mole of compound.

1 mole of any compound contains avagadro number(6.023x1023) of atoms

Given that the molar mass of 235U is 235.0439299 g

That means the mass of 6.023x1023 atoms is 235.0439299 g

So mass of single atom is 235.0439299 / (6.023x1023 )

                                     = 3.902x10-22 g

Therefore the mass of single 235U atom is 3.902x10-22 g

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