Determine the mass in grams of carbon (molar mass ) that contains as many molecules…

CHEMISTRY · Subjective · A Level · Chemistry · Amount of substance · Amount of substance

Problem

Determine the mass in grams of carbon (molar mass

12 \text{ g mol}^{-1}

) that contains as many molecules as

21 \text{ g}

of krypton (molar mass

84 \text{ g mol}^{-1}