CHEM 115 Study Guide - Midterm Guide: Enthalpy, Isolated System, Joule
7 Nov 2017
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Chapter 4 (4. 3) through chapter 5 (5. 6), pogil 5,6,7,8 (1-3) Given on test: periodic table, solubility, polyatomic ions. Proton donors(bronsted-lowry), increase concentration of h+ when dissolved in water (arrhenius) Only 7 strong acids: hydrochloric (hcl, chloric (hclo3, perchloric (hclo4, hydrobromic (hbr, hydroiodic (hi, sulfuric (h2so4, nitric (hno3) Proton acceptors (bronsted-lowry), increase concentration of oh- when dissolved in water(arrhenius) Strong bases are alkali metals, calcium, strontium, barium. When strong acid reacts with strong base. When acid and bases are mixed in solution, neutralization occurs. Products have no characteristics of an acidic or basic solution. Salt means any ionic compound whose cation comes from base and anion comes from acid. Hcl(aq)[acid] + naoh(aq)[base] h2o(l)[water] + nacl(aq)[salt] Net ionic: h+(aq) + oh-(aq) h2o(l) Gas is formed as product of reaction, along with water. 2 hcl(aq) + na2s(aq) h2s(g) + 2 nacl(aq: net ionic: 2 h+(aq) + s2-(aq) h2s(g) Caco3(s) + 2hcl(aq) cacl2(aq) + (h2co3) Nahco3(aq) + hbr(aq) nabr(aq) + (h2co3)
