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

Author Question: A weak acid has Ka = 4.2 10-3. If [A-] = 2.0 M, what must [HA] be so that [H+] = 2.1 10-3 M? (Read 38 times)

nmorano1

  • Hero Member
  • *****
  • Posts: 598
on: Jul 8, 2021

Question 1

A weak acid has Ka = 1.00 × 10-3. If [HA] = 1.00 M what must be [A-] for the pH to be 2.7?
◦ 0.50 M
◦ 2.0 M
◦ 2.7 M
◦ 0.37 M
◦ 0.75 M

Question 2

A weak acid has Ka = 4.2 × 10-3. If [A-] = 2.0 M, what must [HA] be so that [H+] = 2.1 × 10-3 M?
◦ 1.5 M
◦ 2.0 M
◦ 1.0 M
◦ 0.5 M
◦ 0.25 M
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by nmorano1 on Jul 8, 2021

maaaaaaaaaa

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 8, 2021
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 25% of students answer this correctly


nmorano1

  • Member
  • Posts: 598
Reply 2 on: Jul 8, 2021
:D TYSM

bblaney

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Saturated and Unsaturated Fatty Acid Saturated and Unsaturated Fatty Acid
Saturated fatty acid Saturated fatty acid
Weak Acids and Weak Bases Weak Acids and Weak Bases
Fatty acid desaturation system Fatty acid desaturation system
Acid deposition is a transboundary problem Acid deposition is a transboundary problem
Acid–Base Balance Acid–Base Balance
Video: Hemodynamics Animation

For a complete list of videos, visit our video library