<http://schema.org/datePublished>
"2013-10-02T16:25:46Z"^^<http://schema.org/Date>
<http://chemwiki.ucdavis.edu/Physical_Chemistry/Equilibria/Chemical_Equilibria/Calculating_an_Equilibrium_Concentration/Calculating_an_Equilibrium_Constant%2C_Kp%2C_with_Partial_Pressures>