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sineoko [7]
3 years ago
7

What is the maximum number of electrons in the following energy level? n = 2

Chemistry
2 answers:
Alisiya [41]3 years ago
7 0

Answer:

8

Explanation: I did the lesson

Citrus2011 [14]3 years ago
6 0
The answer is 18 electrons
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30.0L of helium gas into moles of helium gas.​
zepelin [54]
<h3>Answer:</h3>

1.25 moles (R.T.P.) or 1.34 moles (S.T.P.)

<h3>Explanation:</h3>
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  • On the other hand, 1 mole of a gas will occupy 22.4 Liters at standard temperature and pressure (S.T.P.)

Therefore, at R.T.P.

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= 30.0 L ÷ 24 L

= 1.25 moles

At S.T.P

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= 1.34 moles

Thus, 30.0 L of helium gas are equivalent to 1.25 moles of He at R.T.P. and 1.34 moles at S.T.P.

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