Question

A sample of vitamin C is known to contain 2.409 x 1024 oxygen
atoms. How many moles of oxygen atoms are present in the
sample?​

Answer 1

Answer:Given number of O₂ molecules in sample=2.58×10²⁴.

As we know that, 1 molecule =6.022×10²³ oxygen atoms

2.58×10²⁴O₂ atoms=2.58×10²⁴/6.022×10²³

⇒4.28 moles.

Explanation:

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Answer 2

The moles of Oxygen present in the sample = 4 moles

Explanation:

Given:

A sample of Vitamin C contains $2.409\times 10^{24}$ atoms

To find out:

Moles of Oxygen atoms present in the sample

Solution:

From Avogadro's principle

We know that in one mole of substance the number of atoms present  = $6.023\times 10^{23}$

Thus,

$6.023\times 10^{23}$ atoms are present in = 1 mole

$\since$ 1 atom is present in = $\frac{1}{6.023\times 10^{23}}$ moles

$\therefore 2.409\times 10^{24}$  atoms are present in

= $\frac{1}{6.023\times 10^{23}}\times 2.409\times 10^{24}$ moles

= 4 moles

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Q: A sample of Vitamin C is known to contain 2.58×10^24 oxygen atoms. How many moles of O2 are present in the sample.

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