Cola drinks have a phosphoric acid content that is described as from 0.057 to 0.084% of 75% phosphoric acid, by mass. Estimate the pH range of cola drinks corresponding to this range of content.
Chapter 7: Periodic Properties of the Elements Monday, October 17, 2016 2:56 PM 7.1 Development of the Periodic Table Mendeleev and Meyer in 1869 group the elements by properties Groups 1A through 7A are representing s and p subshells Elements are grouped by metals, nonmetals and metalloids Groups are arranged by valence electrons (electrons that are involved in chemical reactions) Topics covered: • Effective nuclear charge (eff effect of protons on electrons • Atomic sizes Effective nuclear charge Chemical properties are determined by • Number of valence electrons • How strongly these electrons are attracted to the nucleus Core electrons are all electrons but valence electrons The effects of increasing nuclear charge can be illustrated by looking at cor
