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

Author Question: What is the pH of a buffer system prepared by dissolving 10.70 grams of NH4Cl and 30.00 mL of 12 M ... (Read 137 times)

rosent76

  • Hero Member
  • *****
  • Posts: 516
on: Feb 15, 2020

Question 1

When 110 mL of 0.12 M NaF is added to 110 mL of 0.12 M HF, relative to the pH of the 0.10 M HF solution the pH of the resulting solution will
◦ decrease.
◦ become 7.
◦ increase.
◦ remain the same.

Question 2

What is the pH of a buffer system prepared by dissolving 10.70 grams of NH4Cl and 30.00 mL of 12 M NH3 in enough water to make 1.000 L of solution? Kb = 1.80 × 10-5 for NH3.
◦ 9.26
◦ 9.00
◦ 11.32
◦ 9.51
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 rosent76 on Feb 15, 2020

alvinum

  • Sr. Member
  • ****
  • Posts: 317
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


rosent76

  • Member
  • Posts: 516
Reply 2 on: Feb 15, 2020
Great answer, keep it coming :)

pratush dev

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

The Major Divisions of the Nervous System The Major Divisions of the Nervous System
Blood Flow Through the Cardiorespiratory System Blood Flow Through the Cardiorespiratory System
Using a Pegboard System Using a Pegboard System
Venn Diagram of Nervous System and Endocrine System Venn Diagram of Nervous System and Endocrine System
The Male Reproductive System The Male Reproductive System
Table salt (NaCl) molecules dissolving in water, resulting in Na+ and Cl– ions surrounded by ... Table salt (NaCl) molecules dissolving in water, resulting in Na+ and Cl– ions surrounded by ...
Video: Optic Nerve and Optic Disk Animation (Part 1 of 2)

For a complete list of videos, visit our video library