Question

Question 30
A sample of vitamin C is known to contain $2.58\times {10}^{24}$ oxygen atoms. How many moles of oxygen atoms are present in the sample?

Answer 1

1 mole of oxygen atoms $=6.022\times {10}^{23}$ atoms

$\therefore$ Number of moles in $2.58\times {10}^{24}$ oxygen atoms = $\frac{2.58\times {10}^{24}}{6.022\times {10}^{23}}$ =4.28 moles of oxygen atoms