Question

A sample of Vitamin C is known to contain 2.58×10^25 oxygen atoms. How many moles of O2 are present in the sample.
Give the answer with appropriate steps.​

Answer 1

Answer:

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Explanation:

Given number of O₂ molecules in sample=2.58×10²⁴. ⇒4.28 moles

Answer 2

Answer:-

42.84 moles of O₂ are present in the sample of Vitamin C .

Explanation:-

Given that, a sample of Vitamin C contains 2.58×10²⁵ Oxygen (O₂) atoms and we need to calculate the number of moles of O₂ in the sample.

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• Avogadro Number = 6.022×10²³

Now we know that :-

Number of moles :-

= No of atoms/Avogadro Number

= 2.58×10²⁵/6.022×10²³

= 0.4284×10²

= 0.4284×100

= 42.84 moles

Some Extra Information:-

The word 'mole' as introduced by Wilhelm Ostwald who derived the term from the Latin word 'moles' meaning heap or a pile . A substance may be considered as a heap of atoms or molecules. In 1967, mole was accepted as a unit which provides a simple way of reporting large number [6.022×10²³] i.e. a massive heap of atoms or molecules in a sample.