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

Author Question: A solution is prepared by dissolving 0.23 mol of hypochlorous acid and 0.27 mol of sodium ... (Read 120 times)

luminitza

  • Hero Member
  • *****
  • Posts: 555
on: Aug 27, 2018
A solution is prepared by dissolving 0.23 mol of hypochlorous acid and 0.27 mol of sodium hypochlorite in water sufficient to yield 1.00 L of solution. The addition of 0.05 mol of HCl to this buffer solution causes the pH to drop slightly.
 
  The pH does not decrease drastically because the HCl reacts with the ________ present in the buffer solution. The Ka of hypochlorous acid is 1.36  10-3. A) H2O
  B) H3O+
  C) hypochlorite ion
  D) hypochlorous acid
  E) This is a buffer solution: the pH does not change upon addition of acid or base.

Question 2

For the reaction 2 C4H10 (g) + 13 O2 (g)  8 CO2 (g) + 10 H2O (g)
 
  H is -125 kJ/mol and S is +253 J/K  mol. This reaction is ________.
  A) spontaneous at all temperatures
  B) spontaneous only at high temperature
  C) spontaneous only at low temperature
  D) nonspontaneous at all temperatures
  E) unable to determine without more information

Question 3

The angles between sp2 orbitals are ________.
 
  A) 45
  B) 180
  C) 90
  D) 109.5
  E) 120
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frogdreck123456

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Aug 27, 2018
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


luminitza

  • Member
  • Posts: 555
Reply 2 on: Aug 27, 2018
Thanks for the timely response, appreciate it

daiying98

  • Member
  • Posts: 354
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Evaluation of a child for cystic fibrosis with a sweat chloride test. Sweat is being collected under Evaluation of a child for cystic fibrosis with a sweat chloride test. Sweat is being collected under
The titration curve of phosphoric acid (H3PO4), a common buffer in biological sy The titration curve of phosphoric acid (H3PO4), a common buffer in biological sy
Essential Fatty Acids Both linoleic acid (an omega-6 fatty acid) and alpha-linolenic acid Essential Fatty Acids Both linoleic acid (an omega-6 fatty acid) and alpha-linolenic acid
Normal nerve conduction of Sodium ion Normal nerve conduction of Sodium ion
Aging and Fluid, Electrolyte, and Acid-Base Homeostasis Aging and Fluid, Electrolyte, and Acid-Base Homeostasis
Average Precipitation Acidities and the Effects of Acid Rain Average Precipitation Acidities and the Effects of Acid Rain
Video: Causes of Acne

For a complete list of videos, visit our video library