Answer questions a through c: a. A CHEM 1215L student prepares a dilute solution of sodium hydroxide, NaOH(aq), starting with 6 M sodium hydroxide. She then titrates a 1.372 g sample of KHP with the dilute sodium hydroxide solution, NaOH (aq), to a phenolphthalein end point. If the titration required 21.84 mL of sodium hydroxide, NaOH(aq), calculate the molar concentration of the sodium hydroxide solution, NaOH (aq). (Remember that KHP is potassium hydrogen phthalate KHC8H4O4, NOT potassium hydrogen phosphorus!) b. The student uses the same sodium hydroxide to titrate 10.00 mL of vinegar to a phe- nolphthalein end point. If the titration required 27.48 mL of sodium hydroxide, NaOH (aq), calculate the molar concentration of acetic acid, HC2H3O2 (aq), in the vinegar. c. Calculate the mass percent of acetic acid, HC2H3O2 (aq
Ionic Equilibrium
Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.
Arrhenius Acid
Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.
Bronsted Lowry Base In Inorganic Chemistry
Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.
Answer questions a through c:
a. A CHEM 1215L student prepares a dilute solution of sodium hydroxide, NaOH(aq), starting with 6 M sodium hydroxide. She then titrates a 1.372 g sample of KHP with the dilute sodium hydroxide solution, NaOH (aq), to a phenolphthalein end point. If the titration required 21.84 mL of sodium hydroxide, NaOH(aq), calculate the molar concentration of the sodium hydroxide solution, NaOH (aq). (Remember that KHP is potassium hydrogen phthalate KHC8H4O4, NOT potassium hydrogen phosphorus!)
b. The student uses the same sodium hydroxide to titrate 10.00 mL of vinegar to a phe- nolphthalein end point. If the titration required 27.48 mL of sodium hydroxide, NaOH (aq), calculate the molar concentration of acetic acid, HC2H3O2 (aq), in the vinegar.
c. Calculate the mass percent of acetic acid, HC2H3O2 (aq), in the vinegar using the mo- lar concentration for acetic acid, HC2H3O2 (aq), determined in part band assuming the density of the solution is 1.01 g/mL.
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