Answered

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What is the total number of molecules contained
in 0.50 mole of O2 at STP?
A.
6.0 x 1023
B. 4.5 x 1023
D. 1.5 x 1023
C.
3.0 x 1023

Sagot :

Eduard22sly

The total number of molecules contained in 0.5 mole of O₂ is 3.0×10²³ molecules

Data obtained from the question

  • Mole of O₂ = 0.5 mole
  • Number of molecules =?

How to determine the number of molecules

From Avogadro's hypothesis,

1 mole of O₂ = 6.02×10²³ molecules

With the above information in mind, we can obtain the number of molecules in 0.5 mole of O₂ as illustrated below:

1 mole of O₂ = 6.02×10²³ molecules

Therefore,

0.5 mole of O₂ = 0.5 × 6.02×10²³

0.5 mole of O₂ ≈ 3.0×10²³ molecules

Thus, 3.0×10²³ molecules is present in 0.5 mole of O₂.

Learn more about Avogadro's number:

https://brainly.com/question/1542846

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