A sample contains molecules of carbon dioxide

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

Problem

A sample contains

1.50\times10^{24}

molecules of carbon dioxide. What is the mass of the sample to the correct number of significant figures? (a)

7.0 \times 10^{1}\,\text{g}

(b)

1.8 \times 10^{1}\,\text{g}

(c)

1.10 \times 10^{2}\,\text{g}

(d)

3.0 \times 10^{1}\,\text{g}