Question

calculate the number of grammar atoms of 8 g of oxygen​

Answer 1

Answer:

3.011 x 10^23

Explanation:

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Answer 2

Answer:

8g of 02 contains 1.5 × 10²³ particles.

Explanation:

The number of particles present in 1 mole of any substance is has a fixed value of 6.022 into 10²³.This number is called Avogadro constant (NA)

Molar mass of O2 = 32u

Apply the formula given below :-

Number of particles = Number of moles × 6.022 × 10²³.

==> Number of particles = 8g/32u × 6.022 × 10²³

==> Number of particles = 0.25 × 6.022 × 10²³

Thus, 8g of O2 contains 1.5 × 10²³ particles.