e. Both deliveries were intended to deliver "4 mL". For both the pipet and graduated cylinder, determine how many significant figures should be used to express the value appropriately, should the volume be expressed as "4 mL", "4.0 mL", "4.00 mL", "4.000 mL", "4.0000 mL", etc.? Key: Which digit is the first uncertain digit? i. Select the number of significant figures for the graduated cylinder. ii. Select the number of significant figures for the pipet.

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
icon
Related questions
Question

e. Both deliveries were intended to deliver "4 mL". For both the pipet and graduated cylinder, determine how many significant figures should be used to express the value appropriately, should the volume be expressed as "4 mL", "4.0 mL", "4.00 mL", "4.000 mL", "4.0000 mL", etc.?

Key: Which digit is the first uncertain digit?

i. Select the number of significant figures for the graduated cylinder.

ii. Select the number of significant figures for the pipet.

 

f. Manufacturers of the type of mechanical pipets typically claim accuracy of ± 0.02 mL (maximum absolute error) and precision of ± 0.02 mL (based on standard deviation). (Note: specific claims depend on the volume of the delivery.) Are the results from mechanical pipet measurements (not the graduated cylinder measurements) consistent with these claims?

Select the answer that best cites your data and/or calculations as evidence.

  1. My results agree - my absolute error and standard deviation were less than the claimed values
  2. My results somewhat agree - my absolute error was less than the claimed value, but my standard deviation was greater than the claimed precision
  3. My results somewhat agree - my standard deviation was less than the claimed value, but my absolute error was greater than the claimed accuracy.
  4. My results don't agree at all - both my absolute error and standard deviation were greater than the claimed values.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Cost estimation of chemical processes and equipments
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
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…
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…
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Process Dynamics and Control, 4e
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:
9781119285915
Author:
Seborg
Publisher:
WILEY
Industrial Plastics: Theory and Applications
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The