Question: Consider the diprotic acid H2A with K1 = 1.00 10-4 and K2 = 1.00 10-8. Find the pH and concentrations of H2A, HA-,

Consider the diprotic acid H2A with K1 = 1.00 × 10-4 and K2 = 1.00 × 10-8. Find the pH and concentrations of H2A, HA-, and A2- in
(a) 0.100 M H2A;
(b) 0.100 M NaHA;
(c) 0.100 M Na2A.

Step by Step Solution

★★★★★

3.31 Rating (160 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a k 1 x 311 10 3 H HA pH 251 H 2 A 0100 x 00... View full answer

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)

878-E-C-E-E-C (1872).docx

120 KBs Word File

Students Have Also Explored These Related Chemical Engineering Questions!

Use the method in Box 9-2 to find the pH and concentration of HA- in a 0.01 F solution of the amphiprotic salt Na+ HA- derived from the diprotic acid H2A with pK1 = 4 and (a) pK2 = 8 or (b) pK2 = 5.

The diprotic acid H2A has pK1 = 4.00 and pK2 = 8.00. (a) At what pH is [H2A] = [HA-]? (b) At what pH is [HA-] = [A2-]? (c) Which is the principal species at pH 2.00: H2A, HA-, or A2-? (d) Which is...

A 100.0-mL aliquot of 0.100 M diprotic acid H2A (pK1 4.00, pK2 8.00) was titrated with 1.00 M NaOH. Find the pH at the following volumes of base added and make a graph of pH versus Vb: Vb 0, 1, 5, 9,...

need help with last section ! Identify the correct mole to mole ratio for each type of acid when reacting with a strong base such as NaOH monoprotic acid (HX) 1 mol acid: 1 mor base diprotic acid...

2. Consider a hypothetical diprotic acid (H2A) with pKat = 3 and pKa2 = 7. For a solution with a pH of 4, find the fractional composition of H2A, HA and A? for a 0.1 M (Formal) solution of the...

Prelab Questions: Determination of the Molecular Weight of an Unknown Acid The molecular weight (mass) of an acid can be determined using an acid-base titration analysis. In this prelab, you will use...

NMR Titration. The protonation constants K1 and K2 of a diprotic acid H2A were determined by NMR titration. (Protonation constants, for example, H++LHLK1=[HL]/[H+][L] are used in this example because...

Question \#1 Determine the requested quantities for the following questions. Report your answer to 3 decimal places unless otherwise indicated. (a) From the speciation diagram for the diprotic acid...

When a diprotic acid, H2A, is titrated with NaOH, the protons on the diprotic acid are generally removed one at a time, resulting in a pH curve that has the following generic shape: a. Notice that...

A diprotic acid, H2A, has acid dissociation constants of a 1 =3.3710 -4 and a 2 = 2.0310 11. Calculate the pH and molar concentrations of (H2A), (HA) , and (A2) at equilibrium for each of the...

Define the following terms: best-case estimate, probable-case estimate, and worst-case estimate, and describe how project managers use these concepts.

What are the advantages of having a specialist-based or DMM (open outcry) trading system? An electronic trading system?

Taking a poison pill refers to a potential takeover firm selling additional stocks to existing shareholders, increasing the shares needed for a viable takeover. True False

The Processes of the Project Communications Management Knowledge Area are the Plan Communications Management Process, the Manage Communications Process, and the Monitor Communications Process. A)...

To determine the concentration of a dilute analyte with an ion-selective electrode, why do we use standards with a constant, high concentration of an inert salt?

A cyanide ion-selective electrode obeys the equation E = constant - 0.059 16 log[CN - ] The potential was - 0.230 V when the electrode was immersed in 1.00 mM NaCN. (a) Evaluate the constant in the...

By how many volts will the potential of an ideal Mg 2+ ion-selective electrode change if the electrode is removed from 1.00 10 -4 M MgCl 2 and placed in 1.00 10 -3 M MgCl 2 at 25C?

Exercise 3-3 Schedules of Cost of Goods Manufactured and Cost of Goods Sold [LO3-3] Primare Corporation has provided the following data concerning last month's manufacturing operations, Purchases of...

Erkkila Inc. reports that at an activity level of 6,800 machine-hours in a month, its total variable inspection cost is $426,530 and its total fixed inspection cost is $197,309. What would be the...

Exercise 13-8 (Static) Volume Trade-Off Decisions [LO13-5, LO13-6] Barlow Company manufactures three products-A, B, and C. The selling price, variable costs, and contribution margin for one unit of...