Question on margins of error with calculations.

  • Thread starter Thread starter Attraction
  • Start date Start date
  • Tags Tags
    Calculations Error
AI Thread Summary
Calculations on limiting reagents can yield slight discrepancies from expected answers, often due to rounding errors. Small margins of error may be permissible, but it's essential to understand the grading criteria set by the instructor. The discussion emphasizes the importance of using accurate measurements rather than estimated values. Rounding mistakes can lead to these minute differences, which can be corrected for more precise results. Ultimately, clarity on grading policies is crucial for understanding potential mark deductions.
Attraction
Messages
28
Reaction score
0

Homework Statement



I'm powering through some calculations on limiting reagents. My answers seem to be slightly off with the proper answers. I'm talking about minute differences but still differences all the same. The answer is very much well within the same ballpark. Would I lose some marks if my calculations weren't completely exact or is this small margin of error (and we are talking small here) allowed.

Thanks guys. I love you guys!
 
Physics news on Phys.org
The only person who could answer that is the person giving the marks! What you should be worrying about is why you are getting those "minute differences". Are you using numbers you are given or numbers measured in an experiment?
 
I was rounding up and down at times when I shouldn't have. Have corrected the problem!

Thanks.
 
Thread 'Confusion regarding a chemical kinetics problem'
TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
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...

Similar threads

Replies
16
Views
3K
Replies
9
Views
2K
Replies
2
Views
1K
Replies
6
Views
4K
Replies
15
Views
4K
Replies
3
Views
907
Back
Top