Question: The equilibrium equations and Ka values for three reaction systems are given below. a. Which conjugate pair would be best for preparing a buffer with

The equilibrium equations and Ka values for three reaction systems are given below.
The equilibrium equations and Ka values for three reaction systems

a. Which conjugate pair would be best for preparing a buffer with a pH of 6.96? Why?

NH4+(aq) + H2O-H3O+ + NH3(aq); Ka-5.6 x 10-10 H2CO3(aq) + H20: H30"(aq) + HCO3-(aq); Ka = 4.3 10-7 H2PO4 (aqH20 H30"(aq) + HP042-(aq); Ka = 6.2 10-8

Step by Step Solution

★★★★★

3.32 Rating (173 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

a Select the conjugate pair that has a pK a value closest to a pH o... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Document Format (1 attachment)

Word file Icon

806-B-M-L-S-M (1202).docx

120 KBs Word File

Students Have Also Explored These Related Organic Chemistry Questions!

Q:

Using a 0.20 M phosphate buffer with a pH of 6.4, you add 0.72 mL of 0.51 M HCl to 45 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.)

Q:

Some financial data for three firms are given below a What is the profit for each company at the indicated sales volume b What is the breakeven point in units for each company

Q:

Which SN2 reaction of each pair would you expect to take place more rapidly in a protic solvent? (a) (1) Or (2) (b) (1) Or (2) (c) (1) Or (2) (d) (1) Or (2) Br (1.0M)-MeO(1.0M)-. / OMe + Br

Q:

Use the equilibrium of o-nitrophenol in water below to answer the following questions. 17. What is the algebraic form of the equilibrium expression Ka in the equilibrium above? 18. Given that the...

Q:

Review Questions 1. Explain how a polymer and its monomers are similar 7. Your friend is going to try to follow a "no-fat" diet. to a freight train and its cars. 2. Identify each of the following...

Q:

Solution A Solution B Kinetic Trial Deionized Water Buffer Starch 0.1 MH:0,*** 1 2 40 ml 3.0 ml 2.0 ml. 10 ml. 20 ml. 0.0 ml 5.0 ml 100 ml 100 ml 1.00 ml 100 ml 1.00 ml 1.00 ml. 100 ml 1.00 ml 0.3....

Q:

Applied Mathematics and Computation 95 (1998) 181192 Love dynamics: The case of linear couples Sergio Rinaldi 1 Centro Teoria dei Sistemi, CNR, Politecnico di Milano, Via Ponzio 34/5, 20133 Milan,...

Q:

Getting past conflict resolution: A complexity view of conflict E:CO Issue Vol. 10 No. 1 2008 pp. 23-38 Academic Getting Past Conflict Resolution: A Complexity View of Conflict Leticia Andrade1,...

Q:

Developments in Technology Light is incident from air on the end face of a multimode optical fibre at angle of incidence as shown below. n n 1 2 The refractive indices of the core and cladding are...

Q:

A researcher wishes to compare the height (cm) of four plant varieties within a greenhouse. The greenhouse has six benches and each bench can accommodate 4 pots. The sunlight streaming in the...

Q:

Discuss fundamental ways in which you can apply one (1) learning outcome from this course to your professional and personal life. Elaborate on one (1) emerging technology that intrigued you enough...

Q:

St Tropez manufactures different styles of jewellery cases in southern France. The St Tropez manufacturing capabilities are limited by the total machine hours available. The plants capacity is 90 000...

Q:

Describe External stakeholders such as parents, trustees, alumni, donors, and government offices and their influences on funding for higher education.

Q:

. Multichannel queue with ordered entry and heterogeneous servers (Mastsui and Fukuta, 1977). Consider an ordered entry Poisson input queue (with rate A) with c exponential servers, the ith server...

Q:

Tin (Sn) exists in Earth's crust as SnO2. Calculate the percent composition by mass of Sn and O in SnO2.

Q:

For many years chloroform (CHCl3) was used as an inhalation anesthetic in spite of the fact that it is also a toxic substance that may cause severe liver, kidney, and heart damage. Calculate the...

Q:

Cinnamic alcohol is used mainly in perfumery, particularly in soaps and cosmetics. Its molecular formula is C9H10 O. (a) Calculate the percent composition by mass of C, H, and O in cinnamic alcohol....

Q:

RefertotheBaseball2016data,whichreportinformationonthe30MajorLeagueBaseballteamsforthe2016season....

Q:

Assume an investor deposits $118,485 in a professionally managed account. One year later, the account has grown in value to $132,419 and the investor withdraws $37,019. At the end of the second year,...

Q:

The Corner Shop is considering a new four year expansion project that requires an inis al fived asset irvestrient of $210,000. The fued asset will be depreciated straight-line to zero over its...