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 194 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 61% of students answer this correctly


dejastew

  • Member
  • Posts: 562
Reply 2 on: Mar 21, 2021
Great answer, keep it coming :)

nathang24

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Sample Problem from Raven’s Progressive Matrices Sample Problem from Raven’s Progressive Matrices
Sample Diet for a College-Aged Female Weighing 132 Pounds, Assuming Light to Moderate Daily ... Sample Diet for a College-Aged Female Weighing 132 Pounds, Assuming Light to Moderate Daily ...
Sample Daily Log For Holistic Self-Care Plan. Sample Daily Log For Holistic Self-Care Plan.
pH vs. moles base added per mole acid pH vs. moles base added per mole acid
A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ... A 31.1-g sample of Ne gas exerts a certain pressure in a container of fixed volume. What mass ...
Determine the mass of a nonvolatile, nonionizing compound that must be added to 4.76 kg of ... Determine the mass of a nonvolatile, nonionizing compound that must be added to 4.76 kg of ...
Video: Power Supply Polyacrylamide Gel Protein Sample

For a complete list of videos, visit our video library