A steel scuba cylinder has an internal volume of and is filled with air to an…
CHEMISTRY · Multi-part · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
A steel scuba cylinder has an internal volume of 0.012m3 and is filled with air to an absolute pressure of 2.0×107Pa at 20∘C.
(i) Calculate the number of moles of air contained in the cylinder.
(ii) Hence determine the total number of molecules of air in the cylinder, taking Avogadro’s number as 6.02×1023mol−1.