Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. physics
  3. tris, (hoch2)3cnh2 (pkb = 5.91), a very common buf

Tris, (HOCH2)3CNH2 (pKb = 5.91), a very common buffer for studying biochemical processes, is prepared by...

80.2K

Verified Solution

Question

Physics

Tris, (HOCH2)3CNH2 (pKb = 5.91), a very common buffer forstudying biochemical processes, is prepared by a biological chemistusing 10.0M NaOH to a pH of 7.79 using 31.52 g of (HOCH2)3CNH3Cl,or TrisH+, (MW=157.597g/mol, pKa 8.075).

(a) Calculate the ratio of [Tris]/[TrisH+] at a pH of7.79.

(b) Calculate the initial moles of (HOCH2)3CNH3Cl(MW=157.597g/mol) that were added.

(c) Write the chemical reaction between the TrisH+ and theadded NaOH.

(d) Calculate the moles of hydroxide used to produce the ratiocalculated in part (a).

(e) What volume of 10.0 M NaOH is needed to prepare thebuffer?

(f) Now you dilute the solution from above to 1.0 L and takehalf of the buffer (500.0 mL) and add 0.0100 moles solid HCl. Whatis the new pH?

Answer & Explanation Solved by verified expert
3.8 Ratings (574 Votes)
    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Finance
1.2K views

A farmer has been given the opportunity to become a part owner in a local fertilizer...

Finance
1.2K views

The Beasley Corporation has been experiencing declining earnings but has just announced a 50 percent salary...

Finance
1.2K views

The most recent financial statements for Moose Tours, Inc., appear below. Sales for 2016 are projected...

Psychology
1.2K views

1). Offering Support: how have you supported friends or family who were struggling? What seemed to...

Biology
1.2K views

The ultimate aim of any sociological theory is to:provide an explanation of people's past behaviorsincrease...

Algebra
1.2K views

Consider the function y x 5x 7 a Complete the square to find the vertex...

Accounting
1.2K views

In cases of constrained capacity, the opportunity cost of transferring a product internally is zero....

Accounting
1.2K views

Concord requires sales of $500000 to cover its fixed costs of 593000 and to earn...

Accounting
1.2K views

A company uses the average cost retail method to estimate inventories. Data for the first...

Accounting
1.2K views

Stylish Sitting is a retailer of office chairs located in San Francisco, California. Due to...

Accounting
1.2K views

Both Dillon and Lisa make taxable gifts of $300,000 in the current year. Will their...

Finance
1.2K views

If you need to take out a $60,000 student loan 2 years before graduating, which...