Explain a triprotic acid with pk values closer than 3 units

Reference no: EM13295963

In the case of your laboratory titration of citric acid, you are dealing with a triprotic acid in which the pKa values are close together. Therefore the first and second equivalence points are not easily discernible in the titration, but the third equivalence point is, and one can use that value to analyze the titration curve. Following is an example of a triprotic acid with pK values closer than 3 units, and pK3 less than 10. You have a 20.0 mL solution of the triprotic acid, H3A, with a concentration of 0.128 M, and are titrating it with a 0.250 M solution of NaOH.

a) How many millimoles of H3A are you titrating?

b) How many millimoles of NaOH are required to complete the titration?

c) What volume of NaOH will be needed to completely titrate the acid?

d) What volume of NaOH will be needed to reach the first equivalence point

Reference no: EM13295963

Questions Cloud

Determine areas that offer opportunities for change : Describe your organization's history, products, and major competitors.

What is the tom current stock price after the recap : The company had 40M shares before the recap. What is the Tom's current stock price after the recap?

What does the term the dark ages mean : What does the term the Dark Ages mean and In what ways were the Dark Ages dark - In what ways was this society inadvertently preparing to emerge in modernity through the preservation of classical literature and scripture?

Find the skateboards velocity relative to the sidewalk : A 39.6-kg boy, riding a 2.33-kg skateboard at a velocity of +5.07 m/s across a level sidewalk, find the skateboard's velocity relative to the sidewalk at this instant

Explain a triprotic acid with pk values closer than 3 units : Following is an example of a triprotic acid with pK values closer than 3 units, and pK3 less than 10. You have a 20.0 mL solution of the triprotic acid, H3A, with a concentration of 0.128 M, and are titrating it with a 0.250 M solution of NaOH.

How to find rd since who must know vd or the reverse : It is required to design a drain-to-gatefeedback NMOS to operate at a dc drain current of .5mA. Assume VDD= +5V, knW/L =1mA/V2, Vt =1 V, and lambda=0. Use astandard 5% resistance value for RD, and give the actual values obtained for ID and VD.

Describe the attitudes and emotions of the typical quiktrip : 1. How would you describe the attitudes and emotions of the typical QuikTrip employee? How do these attitudes and emotions influence the employees' work behaviors?

Find the tangential acceleration of the discus thrower : A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration of 2.4 rad/s2. What is the tangential acceleration of the discus thrower at this point

Outsourced software development project : What type of contract do you think will be most appropriate in this situation and why

User Account

All Pages