1. 1.204 x 1024 atoms He = ? moles He

Chemistry

1 answer:

Fantom [35]3 years ago

5 0

Check your chemistry textbook (or class notes) concerning molar mass, then look up the value for oxygen.

Then divide Avogadro’s number into the given amount of atoms, to find the number of moles.

Then combine this result appropriately with the molar mass, and voilà!

…Then reconsider posting homework questions without showing the work you have already done.

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Electronic configuration : It is defined as the representation of electrons around the nucleus of an atom.

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Paramagnetic compounds : They have unpaired electrons.

Diamagnetic compounds : They have no unpaired electrons that means all are paired.

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(a) [Kr] 5s²4d⁸

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(b) [Kr] 4d¹⁰

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(c) [Kr] 5s¹4d⁹

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