First Order Decomposition -> % of compound. Please help

Click For Summary
SUMMARY

The discussion centers on calculating the percentage of a compound that has decomposed in a first-order reaction with a rate constant of 0.00313 sec-1 over a duration of 7.17 minutes. The relevant equation used is rate = ln[A]0 - ln[A]t = kt. The user initially struggled with the problem but later found clarity after discussing it with a friend, indicating the importance of collaborative learning in mastering chemistry concepts.

PREREQUISITES
  • Understanding of first-order reaction kinetics
  • Familiarity with natural logarithms (ln)
  • Knowledge of rate constants in chemical reactions
  • Ability to convert time units (minutes to seconds)
NEXT STEPS
  • Study the derivation of the first-order reaction rate equation
  • Practice problems involving first-order kinetics
  • Explore the concept of half-life in first-order reactions
  • Learn about the impact of temperature on reaction rates
USEFUL FOR

Chemistry students, educators, and anyone interested in understanding reaction kinetics and decomposition processes in chemical reactions.

lucky_star
Messages
33
Reaction score
0
First Order Decomposition -> % of compound. Please help!

Homework Statement


In a first order decomposition, the constant is 0.00313 sec-1. What percentage of the compound has decomposed after 7.17 minutes?

Homework Equations


rate = ln[A]o - ln[A]t = kt


The Attempt at a Solution


I feel bad because I have no idea how to solve this problem. My 1st test is soon to come, please help me!
 
Physics news on Phys.org


Oh, please ignore this message because I got the answer already. After talking with my friend for awhile, I finally understand how to work this problem out. I am sorry if I ever bother you.
 

Similar threads

Chemical Reaction Engineering homework
  • · Replies 1 ·
Replies
1
Views
3K
Half-life decomposition, find final concentration
  • · Replies 5 ·
Replies
5
Views
3K
Complete thermal decomposition of specific compounds
  • · Replies 4 ·
Replies
4
Views
4K
Calculating O2 Volume from First-Order Decomposition of Hydrogen Peroxide
  • · Replies 8 ·
Replies
8
Views
5K
Chemical Kinetics QuestionDetermination of order of reaction
  • · Replies 1 ·
Replies
1
Views
3K
AP Chemistry Chemical Kinetics Problem
  • · Replies 3 ·
Replies
3
Views
7K
How to Calculate Concentration in a First Order Reaction?
  • · Replies 2 ·
Replies
2
Views
7K
Finding order of reaction & rate constant
  • · Replies 3 ·
Replies
3
Views
5K
How Do Geologists Determine the Age of Rock Samples Using Isotopic Ratios?
  • · Replies 5 ·
Replies
5
Views
3K
Kinetics Question: Rate of Reaction at 0.503 M
  • · Replies 5 ·
Replies
5
Views
2K