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

Author Question: 15.0 mL of 0.50 M NaOH is added to a 100.-mL sample of 0.379 M NH3 (Kb for NH3 = 1.8 105). What is ... (Read 91 times)

dejastew

  • Hero Member
  • *****
  • Posts: 562
on: Mar 21, 2021

Question 1

15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.478 M HNO2 (Ka for HNO2 = 4.0 × 10–4). What is the equilibrium concentration of NO2– ions?

◦ 2.5 × 10–3M
◦ 1.7 × 10–4M
◦ 4.2 × 10–1M
◦ 5.0 × 10–2M
◦ None of these are correct.

Question 2

15.0 mL of 0.50 M NaOH is added to a 100.-mL sample of 0.379 M NH3 (Kb for NH3 = 1.8 × 10–5). What is the equilibrium concentration of NH4+ ions?

◦ 9.5 × 10–3M
◦ 5.9 × 10–6M
◦ 3.3 × 10–1M
◦ 9.1 × 10–5M
◦ 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 dejastew on Mar 21, 2021

Carliemb17

  • Sr. Member
  • ****
  • Posts: 325
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 60% of students answer this correctly


dejastew

  • Member
  • Posts: 562
Reply 2 on: Mar 21, 2021
Thanks for the timely response, appreciate it

juliaf

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

« previous next »
 

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

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?

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?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Sample preoperative checklist. Sample preoperative checklist.
A typical spectrum with peaks representing the peptide fragments generated from a sample A typical spectrum with peaks representing the peptide fragments generated from a sample
Sample Exercise Prescription for Weight Training: Advanced Sample Exercise Prescription for Weight Training: Advanced
Sample Program for Changing Daily Caloric Intake Sample Program for Changing Daily Caloric Intake
The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is ... The decay rate of a radioactive sample decreases from 175 kBq to 12.4 kBq in 18.3 s. What is ...
What is the molarity (in mol/L) of the NaOH solution? What is the molarity (in mol/L) of the NaOH solution?
Video: T cell receptors

For a complete list of videos, visit our video library