Quiz with Solution on Proton and Electron | CHEM 115, Assignments of Chemistry

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Chem 115 Name: key. Protons and electrons 9/29/08 Ae Ba (CHC), Na. P 1. You are given a dropper bottle opm aining barium acetate and e es aqueous solutions containing silver nitrate, sodium phosphate7and ammonium chloride. However, it is unclear from any physical property which solution is Ny @ which. Devise an experiment involving only mixing of solutions and addition of ae: sodium chloride in order to determine the identity of the unlabeled solution PU,> : BBo2* Cog) + 2PUu?” (cig) > BazPCy),6) (mix w/ Ng PC, ): NOs: Bertone Ht Agt Cag) + (orlaq) => Ay@ bs) mix Bot w/] AgNO, Followed by No. Ny ts remaining S0ln, 2. List the names and formulas of seven strong acids. Write an acid ionization equation for one of them. Liq, HBr, HNC, ho HCO0,,. HNC , Holy, HCO, HNC lage H+ Cag) + NC (aq) or HNOlag) + HO) —> Hot (aq) + MO, Cog). 3. Write an acid ionization equation for hydrofluoric acid, a weak acid. In what way does this equation differ substantially from that written in question 1? HF = Hi (og) + Flog) or HFCag) + 1,000) 2 HOt (ng) 4 Flog) 4. Using the following reactions, prepare and activity series for the halogens: @) Bra(aq) + 2Nal(aq) — 2NaBr(aq) + I(aq) b ) Cl2(aq) + 2NaBr(aq) > 2NaCl(aq) + Bro(aq) From (a) Br ts rectuced, I is cxipirzecl. iy Gr, + Nie NREr ti. re fg =| Gs From (b) © is Oa FeDLACed, ee Crichizecl. : Cxidlizing cbr lit Acbivity series C2> Br >I. by eaw—ot peebcthind « [> Br>@ by ease of oxiolabton,