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

Author Question: A monoprotic weak acid when dissolved in water is 0.66% dissociated and produces a solution with a ... (Read 296 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
on: Mar 21, 2021

Question 1

A 4.5 x 10–3M solution of a weak acid is 6.3% dissociated at 25ºC. In a 4.5 x 10–4M solution, the percentage of dissociation would be:

◦ the same.
◦ > 6.3%.
◦ < 6.3%.
◦ zero.
◦ Need to know the Kaof the acid to answer this.

Question 2

A monoprotic weak acid when dissolved in water is 0.66% dissociated and produces a solution with a pH of 4.15. Calculate the Ka of the acid.

◦ 6.6 × 10–3
◦ 1.1 × 10–2
◦ 4.7 × 10–7
◦ Need to know the initial concentration of the acid.
◦ None of these are correct.
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by craiczarry on Mar 21, 2021

alexisweber49

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Mar 21, 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


craiczarry

  • Member
  • Posts: 527
Reply 2 on: Mar 21, 2021
Excellent

frankwu0507

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

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.

The discovery of aquaporins, water channels made of a transmembrane protein. The discovery of aquaporins, water channels made of a transmembrane protein.
Amino acid sequence of bovine insulin Amino acid sequence of bovine insulin
Saturated and Unsaturated Fatty Acid Saturated and Unsaturated Fatty Acid
The citric acid cycle controlled by NAD+ and NADH The citric acid cycle controlled by NAD+ and NADH
Fate of the Amino acid carbon skeletons Fate of the Amino acid carbon skeletons
What volume of a 0.831 M solution of CaCl2 contains 1.28 g of solute? What volume of a 0.831 M solution of CaCl2 contains 1.28 g of solute?
Video: Mendel's Principles of Inheritance (Father of Genetics)

For a complete list of videos, visit our video library