An sample of is analyzed

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

9.55\,\text{g}

sample of

\text{Al}_2\text{O}_3

is analyzed. Approximately how many oxygen atoms are present in the sample? (a)

3.6 \times 10^{23}

(b)

1.7 \times 10^{23}

(c)

5.7 \times 10^{22}

(d)

1.1 \times 10^{23}