This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: TRIS {(HOCH2)3CNH2} is one of the most common buffers used in biochemistry. A solution is prepared ... (Read 85 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535
on: Feb 15, 2020

Question 1

What is the pH of a buffer system made by dissolving 10.70 grams of NH4Cl and 20.00 mL of 12.0 M NH3 in enough water to make 1.000 L of solution? Kb = 1.8 × 10-5 for NH3.
◦ 9.34
◦ 9.18
◦ 9.26
◦ 11.03

Question 2

TRIS {(HOCH2)3CNH2} is one of the most common buffers used in biochemistry. A solution is prepared by adding enough TRIS and 12 M HCl(aq) to give 1.00 L of solution with [TRIS] = 0.30 M and [TRISH+] = 0.60 M. What is the pH of this buffered system if the pKb is 5.92?
◦ 6.22
◦ 5.92
◦ 8.08
◦ 7.78
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by beccaep on Feb 15, 2020

potomatos

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Feb 15, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 29% of students answer this correctly


beccaep

  • Member
  • Posts: 535
Reply 2 on: Feb 15, 2020
Gracias!

nanny

  • Member
  • Posts: 313
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Some common functional groups of biomolecules Some common functional groups of biomolecules
Common phlebotomy issues. Common phlebotomy issues.
Prescriptions for common analgesics used in dentistry. Prescriptions for common analgesics used in dentistry.
Common Prefixes Cont. Common Prefixes Cont.
Common Root Words and Combining Forms Cont. Common Root Words and Combining Forms Cont.
Common Illnesses in Malnourished Children Common Illnesses in Malnourished Children
Video: Stroke volume - contractility definition

For a complete list of videos, visit our video library