## Chemistry: A Molecular Approach (3rd Edition)

Firstly, we convert cm$^{2}$ to m$^{2}$ 1 cm$^{2}$ = 1$\times10^{-4}$ m$^{2}$ 125cm$^{2}$ = 0.0125m$^{2}$ Secondly, We find the pressure in Pascals using the following equation: Pressure=$\frac{Force}{Area}$ Pressure=$\frac{2.31\times10^{4}N}{0.0125m^{2}}$ = 1848000 Pa In the last step we convert Pascal into atm 1 atm= 101325 Pa $\frac{1848000}{101325}$ = 18.2 atm