ANSWER BI AND ANY OTHER THREE QUESTIONSSECTION DQuestion B1One way to delermine the pKa value is by use ofa pli curve. One student used thie pH curveto determine thc pka value of the weak monoprotic acid. She transferred25.0 cm' of0.100 M solution of the acid into a conical flask and measured the pll of the acid solutionusing a pH mcter accurate to one decimal place. A solution of sodium hydroxide ofconcentration 0.100 mol dni was added from the burette in small portions until the alkaliwas present in excess. The pH of the mixture was recorded after each addition of the sodiumhydroxide solution. Then she plotted the pH of the solution versus volume of alkali addedfrom the burette and used this graph to determine the acid dissociation constant.141210-1020304050VNaOH (ml)a) Calculate mass of the acid required to prepare 100 cm' of 0.1 solution of thisacid.(Molar mass of the acid 150 g mol)b) What is the volume of sodium hydroxide added at cquivalence point?c) What is the pH of the solution when half of the acid is neutralisedd) What is the pKa of the acid? Show all your calculationsc) Explain why pH changes slowly between point A and R

Solution: a) here we have to prepare 100 mL of 0.1 M acid solution. given molar mass of acid is…

Answered: ) Calculate mass of the acid required…

) Calculate mass of the acid required to prepare 100 cm' of 0.1 solution of this acid.(Molar mass of the acid 150 g mol) 5) What is the volume of sodium hydroxide added at equivalence point?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

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.

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