Question

A sample of vitamin C contains $2.48\times {10}^{25}$ oxygen atoms. How many moles of oxygen atoms are present in the sample?

Answer 1

As we know:

• Given the number of oxygen atoms in the sample -$2.48\times {10}^{25}$ atoms
• One mole of oxygen atoms = $6.022\times {10}^{23}{N}_A$
• or $6.022\times {10}^{23}{N}_A$=1 mole
• So $2.48\times {10}^{25}$oxygen atom=$\frac{2.48\times {10}^{25}}{6.022\times {10}^{23}}$= 41.18 mole

So, A sample of vitamin C contains 41.18 moles of oxygen atoms.