Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 11: Q67P c (page 263)

Question:Effect of concentration in the titration of weak acid with strong base.Use your spreadsheet from Problem 11-66 to prepare a family of titration curves for pKa = 6, with the following combinations of concentrations: (a) Ca = 20 mM, Cb = 100 mM; (b) Ca = 2 mM, Cb = 10 mM; (c) Ca = 0.2 mM, Cb = 1 mM.

Short Answer

Expert verified

The plot of the family of titration curves for pKa =6 is shown below

(c)

Step by step solution

01

Equation need to be used to develop spreadsheet

The equation for the fraction of titration of weak acid with strong base

ϕ=CbVbCaVa=αA--1-H+-OH-Ca1+H+-OH-Cb

Consider the titration of a weak acid HA (volume=Va, initial concentration=Ca) with a strong base NaOH (volume=Vb, initial concentration=Cb).

With reference to SID-135385-11-67P – a the following graph was obtained for Ca = 20 mM, Cb = 100 mM

With reference to SID-135385-11-67P – b the following graph was obtained for Ca = 20 mM, Cb = 100 mM

02

Development of the spreadsheet for Ca = 0.2 mM, Cb = 1 mM

Spreadsheet for Ca = 0.2 mM, Cb = 1 mM

03

Plot for part (c)

From the above table titration curves obtained is plotted below

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Titration on Diprotic Systems

11-29 Find the pH of the solution when 0.0100M tyrosine is titrated to the equivalence point with0.00400MHCIO4.

Titration on Diprotic Systems

11-30. This problem deals with the amino acid cysteine, which we will abbreviate H2C.

(a) A 0.0300Msolution was prepared by dissolving dipotassium cysteine, in water. Then of this solution were titrated with 0.0600MHCIO4. Calculate the pHat the first equivalence point.

(b) Calculate the quotient [C2-]/[HC-] in a solution of cysteinium bromide (the saltH3C+Br-).

Find mg protein/mL if 3.00 mL of NaOH were required.

Give the name and formula of a primary standard used to

Standardize (a) HCl and (b) NaOH

Consider the titration of100.0mlof 0.100MNaOHwith 1.00MHBr. Find the pH at the following volumes of acid added and make a graph of pH versusVa:Va=0,1,5,9,9,9,10,10.1 androle="math" localid="1654940659782" 12ml .
See all solutions

Recommended explanations on Chemistry Textbooks

Chemical Analysis

Read Explanation

Physical Chemistry

Read Explanation

Chemistry Branches

Read Explanation

Chemical Reactions

Read Explanation

Kinetics

Read Explanation

Making Measurements

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free