Explanation Given: Concentration of the polyprotic acid. 0.35 M H 3 PO 4 . 0.35 M H 2 C 2 O 4 Calculation: a) To determine the [ H 3 O + ] we need to consider the first dissociation constant. Second and third dissociation constant can be ignored as those are very small as compared to the first dissociation constant. First dissociation constant=7.1*10 −3 0.35 M H 3 PO 4 will produce 0.35 M [ H + ] and 0.35 [ H 2 PO − 4 ] Let’s consider [ H + ]=x then [ H 2 PO − 4 ] will be also x Now K a = [ H + ] [ H 2 PO − 4 ]/[ H 3 PO 4 ] or 7.1*10 −3 = x * x /(0.35-x) x 2 =7.1 * 0.35 * 10 −3 -7.1 * 10 −3 x or , x 2 -7.1 * 0.35 * 10 −3 -7.1 * 10 −3 x =0 o r , x = { − 7.1 * 10 − 3 ± [ ( 7.1 * 10 − 3 ) 2 − 4 * 1 * − 7.1 * 10 − 3 * 0.35 ] } / 2 o r , x = { − 7.1 * 10 − 3 ± [ ( 7.1 * 10 − 3 ) 2 + 4 * 1 * 7.1 * 10 − 3 * 0.35 ] } / 2 o r , x = { − 7.1 * 10 − 3 ± [ 5.041 * 10 − 5 + 9.94 * 10 − 3 ] } 2 o r , x = { − 7.1 * 10 − 3 + 9.9904 * 10 − 3 } / 2 o r , x = { ( 9.9904 − 7...

Chemistry: Structure and Properties, Books a la Carte Edition & Modified MasteringChemistry with Pearson eText -- ValuePack Access Card -- for Chemistry: Structure and Properties Package

1st Edition

ISBN: 9780133908695

Author: Nivaldo J. Tro

Publisher: PEARSON

See similar textbooks

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 equilibri…

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.

Videos

Question

Chapter 17, Problem 115E

Interpretation Introduction

To determine:

a)

[H₃O⁺] and P^H of 0.35 M H₃PO₄

b)

[H₃O⁺] and P^H of 0.35 M H₂C₂O₄

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 17, Problem 114E

Chapter 17, Problem 116E

Chapter 17 Solutions

Chemistry: Structure and Properties, Books a la Carte Edition & Modified MasteringChemistry with Pearson eText -- ValuePack Access Card -- for Chemistry: Structure and Properties Package

Ch. 17 - Identify the conjugate base in the reaction shown...Ch. 17 - Which pair is a Bronsted-Lowry conjugate acid-base...Ch. 17 - Which acid has the largest Ka: HClO2(aq),...Ch. 17 - Consider the given acid ionization constants and...Ch. 17 - What is the OH- concentration in an aqueous...Ch. 17 - An HNO3(aq) solution has a pH of 1.75. What is the...Ch. 17 - Find the pH of a 0.350 M aqueous benzoic acid...Ch. 17 - Find the pH of a 0.155 M HClO2(aq) solution. For...Ch. 17 - 9. Calculate the percent ionization of 1.45 M...Ch. 17 - Consider two aqueous solutions of nitrous acid...

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

a) [ H 3 O + ] and P H of 0.35 M H 3 PO 4 b) [ H 3 O + ] and P H of 0.35 M H 2 C 2 O 4

Solution Summary: The author explains that to determine the [ H 3 O + ] and P H of 0.35 M H 2 C 2 O 4 we need to consider the first dissociation constant.

Concept explainers

Videos

To determine:

a)

[H₃O⁺] and P^H of 0.35 M H₃PO₄

b)

[H₃O⁺] and P^H of 0.35 M H₂C₂O₄

Want to see the full answer?

Chapter 17 Solutions

a) [ H 3 O + ] and P H of 0.35 M H 3 PO 4 b) [ H 3 O + ] and P H of 0.35 M H 2 C 2 O 4

Solution Summary: The author explains that to determine the [ H 3 O + ] and P H of 0.35 M H 2 C 2 O 4 we need to consider the first dissociation constant.

Concept explainers

Videos

To determine: a) [H3O+] and PH of 0.35 M H3PO4 b) [H3O+] and PH of 0.35 M H2C2O4

Want to see the full answer?

Chapter 17 Solutions

To determine:

a)

[H₃O⁺] and P^H of 0.35 M H₃PO₄

b)

[H₃O⁺] and P^H of 0.35 M H₂C₂O₄