Formula from Chapter 9: Additivity of partial pressure

\(P_{\mathrm{total}} = \sum (P_{\mathrm{partial}})\)     

\(P_{\mathrm{\ce{N2}}}\) \(= 4.7\ \mathrm{atm}\)    partial pressure of dinitrogen


\(P_{\mathrm{\ce{O2}}}\) \(= 1.3\ \mathrm{atm}\)    partial pressure of dioxygen


\(P_{\mathrm{total}}\) \(= P_{\mathrm{\ce{N2}}} + P_{\mathrm{\ce{O2}}}\)

\(\ \ \ =4.7\ \mathrm{atm} + 1.3\ \mathrm{atm}\)

\(\ \ \ =6.0\ \mathrm{atm}\)