Two gas cylinders containing chlorine were analyzed

CHEMISTRY · Subjective · A Level · Chemistry · Atomic structure · Atomic structure

Problem

Two gas cylinders containing chlorine were analyzed. • Cylinder X:

^{35}\text{Cl}

75.0 %,

^{37}\text{Cl}

25.0 % • Cylinder Y:

^{35}\text{Cl}

60.0 %,

^{37}\text{Cl}

40.0 % Using the isotopic masses 34.97 u for

^{35}\text{Cl}

and 36.97 u for

^{37}\text{Cl}

, determine the average atomic mass of chlorine in each cylinder and state which cylinder contains the heavier chlorine gas.