Question

The number of molecules in 8 g of oxygen gas is:
(A) 6.02 x 1023
(B) 3.01 x 1023
(C) 1.5 x 1023
(D) 3.01 x 1012

Answer 1

Here Is Your Ans ⤵

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$\fbox{ \fbox{\bold{ \: Number \: of \: molecules = \frac{Given \: mass }{Molecular \: mass } × 6.022 × {10}^{23} \: }}}$

$\to$ Number of Molecules = 8/16 × 6.022 × 10²³

$\to$ Number of Molecules = 3.01 × 10²³

Answer 2

Explanation:

→ Number of Molecules = 8/16 × 6.022 × 10²³

\to→ Number of Molecules = 3.01 × 10²³.