Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 18: Q18.13P (page 823)

Question: Use Appendix C to rank the following in order of increasing acid strength: HIO3, HI, CH3COOH, HF .

Short Answer

Expert verified

The order of compounds in increasing acidic strength is

CH3COOH1.8×10-5<HF6.8×10-4<HIO31.6×10-1<HI

Step by step solution

01

Concept Introduction

The ability of an acid to lose its H+ion is measured by its acid strength. A strong acid ionises completely in a solution, whereas a weak acid only ionises partially.

02

Ranking of compounds in order of Increasing Acid Strength

First, list theKa values of the following compounds from appendix C –

HIO3, HI, CH3COOH, HF

Compound

Ka

HIO3

1.6×10-1

HI

-

CH3COOH

1.8×10-5

HF

6.8×10-4

To rank the compounds in order of increasing acid strength, rank them in order of increasingKa . TheKa of HI is not given in Appendix Cbecause it is known that it is the only strong acid and the rest are classified asweak acid. So, it will be ranked last (highest acid strength).

The order is as follows –

role="math" localid="1663304045665" 1.8×10-5<6.8×10-4<1.6×10-1<HI

CH3COOH<HF<HIO3<HI

Therefore, the ranking order is CH3COOH<HF<HIO3<HI.

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

Hemoglobin (Hb) transports oxygen in the blood:

HbH+(aq) +O2(aq) +H2O(l)nHbO2(aq) +H3O+(aq)

In blood,H3O+is held nearly constant at4×10- 8M.

(a) How does the equilibrium position change in the lungs?

(b) How does it change in O2-deficient cells?

(c) Excessive vomiting may lead to metabolic alkalosis, in which [H3O+] in blood decreases. How does this condition affect the ability of Hb to transportO2?

(d) Diabetes mellitus may lead to metabolic acidosis, in which [H3O+] in blood increases. How does this condition affect the ability of Hb to transportO2?

How would you differentiate between a strong and a weak monoprotic acid from the results of the following procedures?

(a) Electrical conductivity of an equimolar solution of each acid is measured.

(b) Equal molarities of each are tested with pH paper.

(c) Zinc metal is added to solutions of equal concentration

Write theexpression for each of the following in water:

(a)CH3NH3+

(b)role="math" localid="1657022192179" HClO

(c)role="math" localid="1657022265078" H2S

Chloral(Cl3C-CH=O)forms a monohydrate, chloral hydrate, the sleep-inducing depressant called “knockout drops” in old movies.

(a) Write two possible structures for chloral hydrate, one involving hydrogen bonding and one that is a Lewis adduct.

(b) What spectroscopic method could be used to identify the real structure? Explain

Which are Lewis acids and which are Lewis bases?

(a)Cu2+(b)Cl-(c)SnCl2(d)OF2
See all solutions

Recommended explanations on Chemistry Textbooks

Ionic and Molecular Compounds

Read Explanation

The Earths Atmosphere

Read Explanation

Chemistry Branches

Read Explanation

Making Measurements

Read Explanation

Chemical Analysis

Read Explanation

Nuclear Chemistry

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