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

Author Question: For a particular first-order reaction, it takes 24 minutes for the concentration of the reactant to ... (Read 103 times)

abc

  • Hero Member
  • *****
  • Posts: 543
on: Nov 18, 2019

Question 1

The reaction that occurs in a Breathalyzer, a device used to determine the alcohol level in a person's bloodstream, is given below. If the rate of appearance of Cr2(SO4)3 is 1.64 mol min-1 at a particular moment, what is the rate of disappearance of C2H6O at that moment?

2K2Cr2O7 + 8H2SO4 + 3C2H6O → 2Cr2(SO4)3 + 2K2SO4 + 11H2O

◦ 1.09 mol min-1
◦ 4.92 mol min-1
◦ 2.46 mol min-1
◦ 0.547 mol min-1

Question 2

For a particular first-order reaction, it takes 24 minutes for the concentration of the reactant to decrease to 25% of its initial value. What is the value for rate constant (in s-1) for the reaction?
◦ 2.0 × 10-4 s-1
◦ 5.8 × 10-2 s-1
◦ 9.6 × 10-4 s-1
◦ 1.2 × 10-2 s-1
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by abc on Nov 18, 2019

mcarey591

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Nov 18, 2019
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 49% of students answer this correctly


abc

  • Member
  • Posts: 543
Reply 2 on: Nov 18, 2019
Gracias!

debra928

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

A mast cell, which produces the symptoms of a hypersensitivity reaction. A mast cell, which produces the symptoms of a hypersensitivity reaction.
The term wasp is typically defined as any insect of the order Hymenoptera and suborder Apocrita that The term wasp is typically defined as any insect of the order Hymenoptera and suborder Apocrita that
Effects of Differences in Solute Concentration on the Movement of Water Molecules Effects of Differences in Solute Concentration on the Movement of Water Molecules
Concentration affects where the precipitin line forms. When 1 reactant is held at a constant ... Concentration affects where the precipitin line forms. When 1 reactant is held at a constant ...
How to convert from radians to degrees, minutes, seconds How to convert from radians to degrees, minutes, seconds
Formation of a polynucleotide by a hypothetical dehydration reaction Formation of a polynucleotide by a hypothetical dehydration reaction
Video: Alternative Energy Sources

For a complete list of videos, visit our video library