Respuesta :
Answer: The correct answer is Option D.
Explanation:
To calculate the number of atoms, we take the help of mole concept.
According to mole concept:
1 mole of any element contains [tex]6.022\times 10^{23}[/tex] number of atoms.
We need to find the number of particles or atoms present in 2.5 mole of [tex]O_2[/tex] gas:
2.50 moles of [tex]O_2[/tex] gas will have = [tex]2.5\times 6.022\times 10^{23}=15.10\times 10^{23}particles=1.51\times 10^{24}particles[/tex]
Hence, the correct answer is Option D.
Avogadro's number is the estimate of the particles that the sample contains. In 2.50 moles of oxygen, 1.51 × 10²⁴ particles are present. Thus, option D is correct.
What are particles?
Particles are the smallest fraction of the entity present in any matter constituting of moles or molecules in the sample.
It is known that 1 mole = 6.022 × 10²³ particles. So, 2.5 moles of oxygen gas will have:
2.50 × 6.022 × 10²³ = 15 × 10²³ particles
Therefore, option D. 1.51 × 10²⁴ particles are present in 2.50 moles of oxygen gas.
Learn more about particles here:
https://brainly.com/question/9214131
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