A solution is prepared by dissolving 0.56 g benzoic acid (C6H5CO2H, Ka 6.4 105 ) in enough water to make 1.0 L of solution. Calculate [C6H5CO2H], [C6H5CO2 ], [H], [OH], and the pH of this solution. 67
September 6, 2016 Diatomic Molecules H 2 N 2 O 2 F 2 Cl 2 Br 2 I 2 Octet Rule States that elements gain or lose electrons to attain an electron configuration of the nearest noble gases Atom Proton Neutrons gained or lost – isotopes Electrons gained or lost – ions o When atoms gain or lose electrons, they become ions Na (Sodium) Na + 11 protons 11 protons #p > #e - 11 electrons 10 electrons 12 neutrons 12 neutrons Sodium atom Sodium ion Cl (Chlorine) Chlorine ion NaCl – Sodium Chloride + 17 protons 17 p 17 electrons