ZuoTi.Pro
Question
Answer key is given in red. Please work out the problem in detail and explain it.
(A) Which of the following combinations will give a buffered solution that has a pH of about 5? Explain clearly the reason for your choice. a) NHs mixed with NH CI (K, for NHj- 1.8 x10) or b) CH,N mixed with C,H:NHCI (K, for CH,N - 1.7x10) pH pKa (B) What ratio of the concentrations of the conjugate acid/base pair from Part A will be needed to form a buffer solution with a pH of 6.2? A/B .50
science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
Answer key is given in red. Please work out the problem in detail and explain it....
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • (A) Which of the following combinations will give a buffered solution that has a pH of...

    (A) Which of the following combinations will give a buffered solution that has a pH of about 5? Explain clearly the reason for your choice. 1.7x10") a) NH, mixed with NH,CI (K, for NH,= 1.8 x10) b) C,HsN mixed with C;H;NHCI (K for CsHsN or (B) What ratio of the concentrations of the conjugate acid/base pair from Part A will be needed to form a buffer solution with a pH of 6.2?

  • Answer all 3M. The Which statement is correct for this reaction (A) CH,acts as a base....

    Answer all 3M. The Which statement is correct for this reaction (A) CH,acts as a base. (C) NH, acts as a base 25. In which set are both compounds soluble in water? 29. (A) magnesium chioride (MgCl) and octane (C.H (B) ethanol (CH,CHJOH) and propane (CH,CH/CH 10s ) carbon tetrachloride (CCL) chloride (MgCl)and magnesium chlorideB) CH, is the conjugate acid of CH. D) magnesium chloride (MgCl) and ethano! (D) NH, is the conjugase acid of NH, (CH,CH OH) 30, which...

  • Experiment 11-Pre-lab Questions listed give the conjugate base, and indicate if a solution of the conjugate...

    Experiment 11-Pre-lab Questions listed give the conjugate base, and indicate if a solution of the conjugate acid-base pair would act as a buffer. Acid a. HCI b. HF e. HNO, d. CH,CO,H e. HBr Conjugate base CI- Buffered Solution? No 2. A buffered solution will resist changes in pH when small amounts of acid or base are added. However if a large amount of acid or base is added, the buffer will cease to work and a large pH change...

  • Determine the volume you would need of each solution (acid/base and conjugate) to make a buffer...

    Determine the volume you would need of each solution (acid/base and conjugate) to make a buffer with a specific pH. Please only use the acids, bases and salts from the table on page 87 in the lab manual. See below for assigned values, each person will be calculating volumes needed for an acidic buffer and a basic buffer. Chart from page 87 List 0.10 M CH,NH, 9.75 the 0.10 M NHỰC H. " List E 0.10 M HCOOH K -...

  • Please answer all questions correctly! i promise a thumbs up if they are right. Thanks 1....

    Please answer all questions correctly! i promise a thumbs up if they are right. Thanks 1. Calculate the [H*] of a solution with a pH of 10.72 a. 5.25x10-4M b. 1.91x10-11M c. 1.07x10-4M d. 5.25x10-11M 2. Arsenic has a Ka of 5.5x10-3 Calculate the pka a. 5.5x10-3 b. 11.74 c. 2.26 d. 1.82x10-12 3. Calculate the pH of a 0.0002M HCl(aq) solution a. 2.00 b. 12.00 c. 3.70 d. 10.3 4. Calculate the [OH-] at equilibrium of the following reaction...

  • A buffer containing acetic acid and sodium acetate has a pH of 5.55. The K, value...

    A buffer containing acetic acid and sodium acetate has a pH of 5.55. The K, value for CH3CO,H is 1.80 x 10. What is the ratio of the concentration of CH3CO H to CH3CO,t? [CH,CO,H1 CH2C0, 1 = Calculate the pH of a solution that has an ammonium chloride concentration of 0.054 M and an ammonia concentration of 0.053 M. Kb = 1.8 x 10-5 pH = What is the pH of 0.35 M acetic acid to 1.00 L of...

  • Hi.can you help me answer questions b and d.thanks a lot for your help Elm in...

    Hi.can you help me answer questions b and d.thanks a lot for your help Elm in the pH of a buffer solution which contoing 9.60 mole Of ammonium nitrate and 0.4 0 mole of ammonig in a 1.0 d m 3 solution. Given Ra for NH 4 = 5.6x 10-10 Lo Write the acid-base conjugate pairs for the following reaction N H 4 + H2O2 N H + HOÁ (2 marks) nicolculate the pH of 0.75 M. Sodium Qietate Solution...

  • please explain how you got all your answers 10. Calculate the pH of a 0.30 M...

    please explain how you got all your answers 10. Calculate the pH of a 0.30 M formic acid solution. (K-1.8 x 10") Weak monoprotic acid. 11. Calculate the K, for a 0.050 M solution of HA (weak acid) if the pH = 4.65. 12. What is the pH of the solution which results from mixing 50.0 mL of 0.30 M HF(aq) and 50.0 mL of 0.30 M NaOH(aq) at 25C? (K. of F = 1.4 x 10) 13. Which of...

  • Please solve and don't copy from other answers. Thank you. The answer is also not -2.152....

    Please solve and don't copy from other answers. Thank you. The answer is also not -2.152. A buffered solution containing dissolved aniline, C6H5NH2, and aniline hydrochloride, C&HNH, CI, has a pH of 5.60. A. Determine the concentration of CH_NH, in the solution if the concentration of CH NH, is 0.335 M. The pKy of aniline is 9.13. [C,H, NH] = 0.0624 B. Calculate the change in pH of the solution, ApH, if 0.381 g NaOH is added to the buffer...

  • please answer number 5 and 6 5. The buffer range for a given weak acid/conjugate base pair is pK, 11. Explain why. 6...

    please answer number 5 and 6 5. The buffer range for a given weak acid/conjugate base pair is pK, 11. Explain why. 6. A weak triprotic acid, HZZ has the following K, values: Ki = 1.4 x 104 K = 9.7 x 10-7 K 5.3 x 109 a. Write the NIE associated with each Ka value. b. Of the four weak acid species: H.Z, H,Z, HZz"; which two could be used to prepare a buffer of pH = 3.55? Explain....

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT