Home » Past Questions » Chemistry » How many moles of oxygen would contain \(1.204 \times 10^{24}\) molecules? NB:...

How many moles of oxygen would contain \(1.204 \times 10^{24}\) molecules? NB:...


Question

How many moles of oxygen would contain \(1.204 \times 10^{24}\) molecules?
NB: Avogadro's constant (NA) \(= 6.02 \times 10^{23}\)

Options

A)
1
B)
2
C)
3
D)
4

The correct answer is B.

Explanation:

\(6.02 \times 10^{23}\) molecules is \(1\) mole
\(1.204 \times 10^{24}\) molecules will be:
\(\cfrac{1.204 \times 10^24 \times 1}{6.02 \times 10^23}\)
\(\cfrac{1.204 \times 10}{6.02}\) \(= \cfrac{12.04}{6.02} = 2\) moles


More Past Questions:


Discussion (9)