The mathematical relationship between gas solubility and pressure is called Henry's Law, solubility $=k_H{P}_{\text{g}\text{a}\text{s}}$

where $k_H$ is the Henry's Law constant for a gas at a given temperature. What is $k_H$ for $Ar$ at $25C,$ in units of mol$/$L $*mmHg?k_H=mo\frac{l}{L}*mmHg$