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

Author Question: A first-order reaction is 40.0% complete at the end of 40.4 minutes. What is the value of the rate ... (Read 97 times)

washai

  • Hero Member
  • *****
  • Posts: 523
on: Mar 21, 2021

Question 1

A chemical reaction that is first order in X is observed to have a rate constant of 1.9 × 10–2s–1. If the initial concentration of X is 1.0 M, what is the concentration of X after 170 s?

◦ 25 M
◦ 0.68 M
◦ 0.24 M
◦ 0.96 M
◦ 0.040 M

Question 2

A first-order reaction is 40.0% complete at the end of 40.4 minutes. What is the value of the rate constant (in min–1)?

◦ 2.27 × 10–2
◦ 1.26 × 10–2
◦ 79.1
◦ 44.1
◦ 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 washai on Mar 21, 2021

Shshxj

  • Sr. Member
  • ****
  • Posts: 335
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


washai

  • Member
  • Posts: 523
Reply 2 on: Mar 21, 2021
Great answer, keep it coming :)

cpetit11

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

The ozone hole in September, 2003. Even as scientists verified that the rate of ozone depletion was The ozone hole in September, 2003. Even as scientists verified that the rate of ozone depletion was
a) Type IV hypersensitivity reaction, contact dermatitis as the result of reaction to the nickel in ... a) Type IV hypersensitivity reaction, contact dermatitis as the result of reaction to the nickel in ...
Reaction 3: The Second Investment of ATP Reaction 3: The Second Investment of ATP
Thiamine pyrophosphate in the pyruvate decarboxylase reaction Thiamine pyrophosphate in the pyruvate decarboxylase reaction
The age-adjusted rate of melanoma, a deadly form of skin cancer, from 1973 to 2000. Over that time p The age-adjusted rate of melanoma, a deadly form of skin cancer, from 1973 to 2000. Over that time p
Video: Transcription—A molecular view

For a complete list of videos, visit our video library