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Ludmilka [50]
4 years ago
15

Why are atoms considered the smallest particles of an element?

Chemistry
2 answers:
77julia77 [94]4 years ago
3 0
Atoms are considered the smallest particles of an element because they are the basic unit. They cannot be broken down into any smaller substance. 
Vlada [557]4 years ago
3 0
They are considered the smallest part of an element because when you break down an element into smaller and smaller parts, theoretically when you reach thed smallest part and you cant break it any more, it will be one atom of whatever element you are breaking down.
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3 years ago
How many moles of gas would you have if you have a volume of 38.0 L under a pressure of 1430 mmHg at standard temperature
seraphim [82]

Answer: There are 3.2 moles of gas if you have a volume of 38.0 L under a pressure of 1430 mmHg at standard temperature.

Explanation:

Given: Volume = 38.0 L

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Using ideal gas equation, the moles of gas will be calculated as follows.

PV = nRT\\

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V = volume

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Substitute the values into above formula as follows.

PV = nRT\\1.9 atm \times 38.0 L = n \times 0.0821 L atm/mol K \times 273.15 K\\n = \frac{1.9 atm \times 38.0 L}{0.0821 L atm/mol K \times 273.15 K}\\= 3.2 mol

Thus, we can conclude that there are 3.2 moles of gas if you have a volume of 38.0 L under a pressure of 1430 mmHg at standard temperature.

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