Purchase Solution

Acid-Base Reaction Problem

Not what you're looking for?

Ask Custom Question

An aqueous solution contains dissolved C6H5NH3Cl and C6H5NH2. The concentration of C6H5NH2 is 0.50 and pH is 4.20.
a. Calculate the concentration of C6H5NH3+ in this buffer solution.
b. Calculate the Ph after 4.0 grams of NaOH(s) is added to 1.0 L of this solution. Neglect any volume change.

Purchase this Solution
Solution Summary

307 words.

Solution Preview

a. calculate the concentration of C6H5NH3+ in this buffer solution.

first we need the dissociation constant for the weak acid or base http://www.zirchrom.com/organic.htm is a good reference and from that I find pKa is 4.63

This correspomds to the following reaction: C6H5 NH3(+) = C6H5NH2 + H(+)

I am going to drop the C6H5 part in my derivation and call this reaction:

-NH3(+) = H(+) + NH2 The ka is given by [H][NH2]/ ...

Purchase this Solution
Free BrainMass Quizzes
Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.

Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

View More Free Quizzes
Related BrainMass Solutions

  • Acid-Base Reaction

    Dear student, Here is a detailed solution of the problem. I have also attached a word document of the solution. Acid-Base Reaction • A neutralization reaction is a chemical reaction between a strong acid and a strong base.

  • Hydrogen Phosphate Buffer System

    So if acid is added, reaction proceeds to left but the negative OH ions shift it to right. If base is added it goes to right but H3O pushes it to left. Thank you for using Brainmass. The following problem helps with a physical chemistry problem.

  • Calculating the pH of a Nitric Acid/Sodium Hydroxide Solution

    In such an acid-base reaction first we have to check whether they are strong or weak acids or bases. When we check from a table, we can see that both nitric acid HNO3 and NaOH are strong.

  • Chromatography: Benzoic Acid and Aniline

    Complete the acid-base reaction below by writing the products of the reaction and label the acid, the base, the conjugate acid and the conjugate base. The diagram attached below. 2.

  • Redox Reactions in Everyday Life

    256325 Redox Reactions in Everyday Life Think about an example of a redox reaction and an acid-base reaction in our everyday lives.

  • Catalytic Mechanism of Carboxypeptidase A

    Glu270 engages in acid/base catalysis: first by acting as a base (extraction of the proton from water) and next as an acid (donation of its proton to the "new" amino group on the released amino acid). e.

  • Finding chemical equations in a phosphate buffer system

    Hence, in your buffer H2PO4- will react as an acid and HPO42- as a base. This is illustrated in your problem: 1. Since H2SO4 is a strong acid it will react with a basic component of the buffer i.e. HPO42-.

  • Positive Iodoform Test

    This gives the carboxylic acid. Finally, an acid-base reaction. The trihalomethyl anion is protonated by the carboxylic acid, giving the carboxylate and the haloform (trihalomethane).

  • Acid and Base Solution Solubility/Reaction

    132972 Acid and Base Solution Solubility/Reaction 1. Why is p-nitroaniline soluble in acid solution? Write the reaction. 2. Why is 2--naphthol soluble in base solution.

  • A flow chart detailing some reactions of an Ester

    In Acid hydrolysis, the acid serves as a catalyst, this is not the case in base mediated hydrolysis. The products of ester hydrolyses are always: a carboxylic acid and an alcohol. A flowchart detailing some reactions of an Ester are determined.

View More Related Solutions