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

Author Question: What is the [CH3CO2-]/[CH3CO2H] ratio necessary to make a buffer solution with a pH of 4.44? Ka = ... (Read 125 times)

fbq8i

  • Hero Member
  • *****
  • Posts: 527
on: Feb 15, 2020

Question 1

A buffer solution is prepared by dissolving 27.22 g of KH2PO4 and 3.37 g of KOH in enough water to make 0.100 L of solution. What is the pH of the H2PO4-/HPO42- buffer if the Ka2 = 6.2 × 10-8?
◦ 7.00
◦ 7.84
◦ 6.84
◦ 7.21

Question 2

What is the [CH3CO2-]/[CH3CO2H] ratio necessary to make a buffer solution with a pH of 4.44? Ka = 1.8 × 10-5 for CH3CO2H.
◦ 2.0:1
◦ 1.1:1
◦ 0.50:1
◦ 0.94:1
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 fbq8i on Feb 15, 2020

zenzy

  • Sr. Member
  • ****
  • Posts: 336
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 39% of students answer this correctly


fbq8i

  • Member
  • Posts: 527
Reply 2 on: Feb 15, 2020
Great answer, keep it coming :)

irishcancer18

  • Member
  • Posts: 310
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Thyroid conditions may make getting pregnant impossible.

The Punnett square demonstrates how the F2 ratio arises from an F1 x F1 cross. The Punnett square demonstrates how the F2 ratio arises from an F1 x F1 cross.
With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ... With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ...
How many moles of AgCl are contained in 244 mL of 0.135 m AgCl solution? The density of the ... How many moles of AgCl are contained in 244 mL of 0.135 m AgCl solution? The density of the ...
Which of the following is a solution? Which of the following is a solution?
Buffer Lab help+advice? Buffer Lab help+advice?
Consider an aqueous solution of calcium nitrate added to an aqueous solution of sodium ... Consider an aqueous solution of calcium nitrate added to an aqueous solution of sodium ...
Video: EpiPen Animation (Part 1)

For a complete list of videos, visit our video library