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 49 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
Gracias!

matt95

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

The citric acid cycle controlled by NAD+ and NADH The citric acid cycle controlled by NAD+ and NADH
Humburger is a good source of niacin , vitamin B6 and pantothenic acid Humburger is a good source of niacin , vitamin B6 and pantothenic acid
Acid–Base Balance Acid–Base Balance
How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to How many grams of tartaric acid, H2C4H4O6, (molar mass = 150.10 g) are needed to
What is the pKa and general acid strength of formic acid if its conjugate base form has a pKb ... What is the pKa and general acid strength of formic acid if its conjugate base form has a pKb ...
Concepts related to acid–base imbalances Concepts related to acid–base imbalances
Video: Cellular Respiration & Glucose Mobilization (Glucose transport & Phosphorylation of Glucose)

For a complete list of videos, visit our video library