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

Author Question: Starting with 0.250L of a buffer solution containing 0.250 M benzoic acid (C6H5COOH) and 0.20 M ... (Read 41 times)

dabomba718

  • Full Member
  • ***
  • Posts: 158
on: Nov 5, 2023

Question 1

Methyl red is a common acid-base indicator.  It has a Ka equal to 6.3 × 10–6.  Its un-ionized form is red and its anionic form is yellow.  What color would a methyl red solution have at pH = 7.8?
◦ green
◦ red
◦ blue
◦ yellow
◦ violet

Question 2

Starting with 0.250L of a buffer solution containing 0.250 M benzoic acid (C6H5COOH) and 0.20 M sodium benzoate (C6H5COONa), what will the pH of the solution be after the addition of 25.0 mL of 0.100M HCl? (Ka (C6H5COOH) = 6.5 x 10-5)
◦ 4.19
◦ 4.10
◦ 4.28
◦ 4.05
◦ 3.78
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by dabomba718 on Nov 5, 2023

rika06@comcast.net

  • Full Member
  • ***
  • Posts: 161
Reply #1 on: Nov 5, 2023
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 50% of students answer this correctly


dabomba718

  • Member
  • Posts: 158
Reply 2 on: Nov 5, 2023
Great answer, keep it coming :)

emsimon14

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

The relationship between pH, pKa, and the dissociation of an acid The relationship between pH, pKa, and the dissociation of an acid
Uric Acid-Inhibiting Drugs for Gout and Gouty Arthritis Uric Acid-Inhibiting Drugs for Gout and Gouty Arthritis
Amphipathic Molecules In aqueous solution Amphipathic Molecules In aqueous solution
The Citric Acid Cycle The Citric Acid Cycle
Solution to Exponent Law Problem Solution to Exponent Law Problem
Which of the following is not a unit factor related to a 15.0% aqueous solution Which of the following is not a unit factor related to a 15.0% aqueous solution
Video: Mendel's Principles of Inheritance (Father of Genetics)

For a complete list of videos, visit our video library