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

Author Question: A 75.0-mL sample of 0.0790 M HCN (Ka = 6.2 1010) is titrated with 0.790 M NaOH. What volume of ... (Read 296 times)

viki

  • Hero Member
  • *****
  • Posts: 525
on: Mar 21, 2021

Question 1

A 75.0-mL sample of 0.0500 M HCN (Ka = 6.2 × 10–10) is titrated with 0.272 M NaOH. What is the [H+] in the solution after 3.0 mL of 0.272 M NaOH have been added?

◦ 4.5 × 10–6M
◦ 1.0 × 10–7M
◦ 3.6 M
◦ 2.2 × 10–9M
◦ None of these are correct.

Question 2

A 75.0-mL sample of 0.0790 M HCN (Ka = 6.2 × 10–10) is titrated with 0.790 M NaOH. What volume of 0.790 M NaOH is required to reach the stoichiometric point?

◦ 750. mL
◦ 7.50 mL
◦ 3.75 mL
◦ 75.0 mL
◦ Cannot determine without knowing the pH at the stoichiometric point.
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 viki on Mar 21, 2021

Leostella20

  • Sr. Member
  • ****
  • Posts: 337
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


AAMendoza

  • Guest
Reply #2 on: Nov 16, 2021
Thank you


« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa
Sample Checklist of Opening and Closing Duties Sample Checklist of Opening and Closing Duties
Sample of an insurance card. Sample of an insurance card.
Sample Teaching Plan for Hypertension Cont. Sample Teaching Plan for Hypertension Cont.
Sample Advance Directive Cont. Sample Advance Directive Cont.
Sample prescriptions of antibiotics for prophylaxis against infective endocarditis. Sample prescriptions of antibiotics for prophylaxis against infective endocarditis.
Video: Vascular tissues in a corn stem and a buttercup root

For a complete list of videos, visit our video library