3. For the following cases, would you solve the problem as a stoichiometry probl

Question

3. For the following cases, would you solve the problem as a stoichiometry problem or as an equilibrium problem? (a) The concentration of ions in a CsOH (aq) solution. (b) The concentration of ions in a CH,COOH (aq) solution. (c) The concentration of NOs for 5.1g of KNOs in 815mL water. (d) The concentration of of F for 2.1g of NaF in 815 mL water. (e) The final concentrations when some HCOO-(aq) is added to some HCOOH (aq) . (f) The final concentrations when some HNOs (aq) is added to some NaOH (aq). 4. For the following cases indicate whether you could use Henderson-Hasselbach (HH), or if you would have to use ICE (a) The pH of an acid with pK, 13 mixed with its conjugate base. (b) The pH of a solution initially 0.1M in CH,COOH (aq) and 0.05 M in CH,COO (aq). (c) The pH of a 0.1 M CH,COOH (ag) solution. (d) The pH of a solution initially 0.1 M in CH,COOH (aq) and 0.05 M in CHsCOONa. (e) The pH of a solution initially 1.91 M in HCIO and 2.17 M in NaCIO

Explanation / Answer

3.

(a) Stoichiometry

(b) Equilibirum

(c) Stoichimetry

(d) Equilibrium

(e) Equilibrium

(f) Stoichimetry

4.

(a) ICE

(b) Henderson - Hasselbach

(c) ICE

(d) Henderson - Hasselbach

(e) Henderson - Hasselbach

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