BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

The mineral claudetite contains the element arsenic in the form of arsenic(III) oxide, As2O3. The As2O3 in a 0.562-g sample of the impure mineral was converted first to H3AsO3 and then titrated with a 0.0480 M solution of I3, which reacts with H3AsO3 according to the following balanced net ionic equation

H3AsO3(aq) + 3 H2O() + I3(aq) → H3AsO4(aq) + 2 H3O+(aq) + 3 I(aq)

If the titration required 45.7 mL of the I3 solution, what is the percentage of As2O3 in the mineral sample?

Interpretation Introduction

Interpretation: The percentage of As2O3 in the mineral sample should be determined.

Concept introduction:

Concentration of a solution can be expressed in molarity.

Molarity=NumberofmolesVolumeofsolutioninlitres

Numberofmoles=massmolarmass

Explanation

Given:

H3AsO3+3H2O+I3-H3AsO4+2H3O++3I-

Massofsample=0.562g

Given that 0.0480MI3- reacts with H3AsO3

From the equation it is clear that one mole of H3AsO3 reacts with one mole of I3- to give the product.

Molarity=NumberofmolesVolumeofsolutioninlitres

Numberofmoles=Molarity×Volumeofsolutioninlitres

NumberofmolesofI3-=Molarity×Volumeofsolutioninlitres=0

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

The formula for ammonium phosphate is _________ .

Introductory Chemistry: A Foundation

Calorie deficit is no longer the primary strategy for weight management.

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What impact has recombinant DNA technology had on genetics and society?

Human Heredity: Principles and Issues (MindTap Course List)