First Order Decomposition -> % of compound. Please help

AI Thread Summary
In a first-order decomposition problem, the rate constant is given as 0.00313 sec-1. To determine the percentage of the compound that has decomposed after 7.17 minutes, the equation rate = ln[A]o - ln[A]t = kt is used. The user initially struggled with the problem but later found the solution after discussing it with a friend. They expressed gratitude for the assistance and apologized for any inconvenience caused. Understanding the application of the first-order kinetics equation is crucial for solving similar problems.
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.
 

Thread 'Prove that evolution is constant (Provide at least two arguments to support your position)'

I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...
View full post »
Thread 'How to find the pH of a galvanic cell (MIT OCW problem set)'

Thread 'How to find the pH of a galvanic cell (MIT OCW problem set)'

This is the final problem in this problem set from MIT OCW. Here is what I did to try to solve it The table cited in the problem is below We can easily spot the two redox couples that are in the electrochemical cell we are given. The hydrogen-based electrode has standard potential zero, and the silver-based electrode has standard potential 0.22. Thus, the hydrogen electrode, with the lower potential, is the reducing agent (ie, it is where oxidation happens) and is the anode. Electrons...
View full post »

Similar threads

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

Hot Threads

Recent Insights

Back
Top