I finally convinced my leadership to get me a scale that had a little more precision in the measurements. I told them I couldn't do my job without it! SO, for the same experiment where I wanted to be adding 1.2 lb of the chemical to the experiment, I repeated the experiment ten times. Here's what I got: Measurement Number 1 2 3 4 5 6 7 8 9 10 Weight of Chemical (Ibm) 1.2 1.2 1.3 1.2 1.2 1.2 1.3 1.2 1.2 1.1 What would I report as the average amount of the chemical that I used, and the uncertainty in that number? Place the uncertainty in the average amount in the blank below, in lbm, rounded to one decimal. For calculations of uncertainty, you should round up!
I finally convinced my leadership to get me a scale that had a little more precision in the measurements. I told them I couldn't do my job without it! SO, for the same experiment where I wanted to be adding 1.2 lb of the chemical to the experiment, I repeated the experiment ten times. Here's what I got: Measurement Number 1 2 3 4 5 6 7 8 9 10 Weight of Chemical (Ibm) 1.2 1.2 1.3 1.2 1.2 1.2 1.3 1.2 1.2 1.1 What would I report as the average amount of the chemical that I used, and the uncertainty in that number? Place the uncertainty in the average amount in the blank below, in lbm, rounded to one decimal. For calculations of uncertainty, you should round up!
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
Related questions
Question
Transcribed Image Text:## Improving Experimental Accuracy with Precision Scales
I finally convinced my leadership to get me a scale that had a little more precision in the measurements. I told them I couldn't do my job without it!
So, for the same experiment where I wanted to be adding 1.2 lb of the chemical to the experiment, I repeated the experiment ten times. Here's what I got:
| Measurement Number | Weight of Chemical (lbm) |
|--------------------|--------------------------|
| 1 | 1.2 |
| 2 | 1.2 |
| 3 | 1.3 |
| 4 | 1.2 |
| 5 | 1.2 |
| 6 | 1.2 |
| 7 | 1.3 |
| 8 | 1.2 |
| 9 | 1.2 |
| 10 | 1.1 |
**Question:**
What would I report as the average amount of the chemical that I used, and the uncertainty in that number?
**Instructions:**
Place the uncertainty in the average amount in the blank below, in lbm, rounded to one decimal. For calculations of uncertainty, you should round up!
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 4 images
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The