A Level

CHEMISTRY · Multi-part · A Level · Chemistry · Amount of substance · Amount of substance

Problem

Calculate: (a) Calculate the amount, in mol, of nitric(V) acid,

\text{HNO}_3

, that contains

9.0\times10^{23}

molecules. (b) Calculate the number of oxygen atoms present in

9.0\times10^{23}

molecules of nitric(V) acid,

\text{HNO}_3