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Question

How many gram atoms are present in 256g of O2?

A
16 gram atoms
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B
32 gram atoms
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C
14 gram atoms
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D
36 gram atoms
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Solution

The correct option is A 16 gram atoms
Given that,
Mass of O2 = 256 g

We know that,
Number of moles = [Mass/Molarmass]

So,
Moles of O2 = 25632=8

Number of gram atoms = Number of molesNumer of atoms

= 8×2=16 gram atoms

Thus, option A is the correct answer.

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