PowerPoint presentation, show other students how to perform titration.

Background Info:
Your lab assignment presentation involves putting together a PowerPoint presentation to show other students how to perform titration. In other
words, your presentation can be used to show other students (next term) how they can perform a titration by following your instructions and
calculations.
To do this presentation (minimum 6 slides, in PowerPoint format), we are providing you with an acid, acetic acid (HC2H3O2) and the base
(NaOH), and you will use phenolphthalein as an indicator.
You will create a mock titration experiment and use given hypothetical data (volume of vinegar, Molarity of NaOH and volume of NaOH for three
trials) to solve the titration calculations (consult your instructor if you need further clarification). At the end of your presentation (only PPT
slides), you will calculate (1) the unknown concentration of the acetic acid (Molarity) and (2) the % mass/vol of the Vinegar solution.
Here is a video that illustrates the titration process and necessary calculations:
Titration Experiment & Calculate the Molarity of Acetic Acid in VinegarLinks to an external site.
Here is the hypothetical experimental data that was obtained after your hypothetical titration. Use the data provided for your calculations:
Your instructor will provide data for steps 1 and 2:
Students must complete Steps 3-10 for their presentation results!
The concentration of NaOH (from the bottle):
__0.250 M___
The volume of vinegar used (that you poured in the flask): __7.50 mL____
Step:
Trial 1
Trial 2
Trial 3
(1)
Initial NaOH level in buret
0.00 mL
0.00 mL
0.00 mL
(2)
Final NaOH level in buret
15.10 mL
16.10 mL
15.70 mL
(3)
Volume (mL) of NaOH used
•
Your presentation must consist of more than merely a series of bullet points to earn full credit.
•
Remember, you want to teach your peers how to do titration experiment and calculations. Your experiment should be reproduced with
ease.
•
Use the Notes section for each slide to fully explain your answers, if necessary.
•
TurnItIn will be used, so paraphrase where necessary to avoid plagiarizing.
•
Grading: See rubric for specific grading criteria (in My Grades). You will be graded based on the rubric; therefore, carefully read it before
you start creating your assignment. Remember there are 50 points, so your work must show quality and effort.
To include in your PPT presentation:
Part 1
•
Title page
•
Purpose of a titration, what is titration and why do we perform a titration?
•
Include your thoughts on why understanding acid/base titration is important to your future career, and how you will use this concept as
you complete your degree (at least 5 sentences with examples). Note: this section should provide insightful discussion).
•
Instrumentation – what are the instruments and glassware used when performing a titration.
•
Chemicals and Procedures. What chemicals are needed? List and explain the procedures for this experiment.
•
Observations and expectations – List the observations and write your expectations. This might include color change and when the
equivalence point (endpoint) might be reached.
Part 2
•
Calculations and Results. Show all your step-by-step calculations and write your results for the Molarity of the acetic and the % of the
acetic acid.
•
Your results must include the following step-by-step calculations:
Steps
Description of steps
Students must do
(4)
Average volume of NaOH used (mL)
Provide Calculations
(5)
Average volume of NaOH used (L)
Provide Calculations
(6)
Moles of NaOH used in titration
Provide Calculations
(7)
Moles of HC2H3O2 neutralized by NaOH
Provide Calculations
(8)
Molarity of HC2H3O2
Provide Calculations
(9)
Grams of HC2H3O2
Provide Calculations
(10)
Percent (m/v) of HC2H3O2 in vinegar
Provide Calculations
•
•
HINT: Remember sig figs in calculations to properly express your final answers (molarity and % mass):
o
addition/subtraction -> fewest decimals
o
multiplication/division -> fewest sig figs
Reference page (in proper APA format)
For help and videos:
•
Your instructor will provide guidance and examples to complete titration calculations.
o
Here is the potential template for PTT, you can modify it any way you want:
▪
o
Here is the calculation guide:
▪
o
Rough template for Week 8 Sig Assignment Chem 280 Download Rough template for Week 8 Sig Assignment Chem 280
Calculations for Week 8 Signature Assignment Download Calculations for Week 8 Signature Assignment
Review supplemental videos:
Setting up and Performing a TitrationLinks to an external site.
Molarity Made Easy: How to Calculate Molarity and Make SolutionsLinks to an external site.
Molarity – Chemistry TutorialLinks to an external site.
Molarity Practice ProblemsLinks to an external site.
Molarity Practice Problems (Part 2)Links to an external site.
Mass-Volume Percent: How to Solve Concentration Questions %(m/v)Links to an external site.
•
Read chapters 13 and 14 for review solutions and acid-base reactions
This assignment should be in the current APA Style with both a title slide and a reference list that includes all the sources used. At least two
scholarly sources should be used (your textbook can be one of the sources). For proper referencing of your resources, consult Library on Canvas,
APA 7th Edition Guide.
Rubric
Week 8 Signature Assignment Rubric
Week 8 Signature Assignment Rubric
Criteria
Ratings
This criterion is
linked to a Learning
OutcomeCompletio
n of lab scenario
25 to >22.25 pts
22.25 to >18.0 pts
18 to >14.75 pts
14.75 to >0 pts
Exceeds Expectations
Meets Expectations
Identifies and
demonstrates a
sophisticated
understanding of the
acid/base titration
process, and how to
analyze and interpret
data.
Identifies and
demonstrates a
satisfactory
understanding of the
acid/base titration
process, and how to
analyze and interpret
data
Approaches
Expectations
Does Not Meet
Expectations
Identifies and
demonstrates some
understanding of the
acid/base titration
process, and how to
analyze and interpret
data
Does not demonstrate
an acceptable
understanding of the
acid/base titration
process, and how to
analyze and interpret
data
10 to >8.9 pts
8.9 to >7.2 pts
7.2 to >5.9 pts
5.9 to >0 pts
Exceeds Expectations
Meets Expectations
Presents an insightful
and thorough analysis
on the importance of
understanding how to
compute properties of
solutions.
Presents a somewhat
insightful and thorough
analysis on the
importance of
understanding how to
compute properties of
solutions.
Approaches
Expectations
Does Not Meet
Expectations
Presents a less than
insightful and thorough
analysis on the
importance of
understanding how to
compute properties of
solutions.
Presents a superficial or
incomplete analysis on
the importance of
understanding how to
compute properties of
solutions.
This criterion is
linked to a Learning
OutcomeApplication
of scenario
Pts
25 pts
10 pts
Week 8 Signature Assignment Rubric
Criteria
This criterion is
linked to a Learning
OutcomePowerPoin
t Presentation
Visual
Ratings
Pts
10 to >8.9 pts
8.9 to >7.2 pts
7.2 to >5.9 pts
5.9 to >0 pts
Exceeds Expectations
Meets Expectations
The PowerPoint is
engaging and interesting
for the audience. The
PowerPoint
demonstrates a
sophisticated clarity,
conciseness, and
correctness; includes
thorough details,
relevant data, and
information; and is
extremely well
organized. Slide number
requirements are met.
The PowerPoint is
interesting, but does not
fully engage the
audience. The
PowerPoint is
accomplished in terms of
clarity and conciseness
and contains only a few
errors; includes sufficient
details, relevant data,
and information; and it is
well organized. Slide
number requirements are
met.
Approaches
Expectations
Does Not Meet
Expectations
The PowerPoint is not
very interesting or
engaging. The
PowerPoint lacks clarity
or conciseness and
contains numerous
errors; provides
insufficient detail,
relevant data, and
information; and lacks
organization. Slide
number requirements
may not be met.
The delivery is not
interesting or
engaging. The
PowerPoint is
unfocused, rambling,
or contains serious
errors; lacks detail,
relevant data, and
information; and is
poorly organized.
Slide number
requirements are not
met.
10 pts
Week 8 Signature Assignment Rubric
Criteria
This criterion is
linked to a Learning
OutcomeWriting
Mechanics
Ratings
Pts
2.5 to >2.23 pts
2.23 to >1.8 pts
1.8 to >1.48 pts
1.48 to >0 pts
Exceeds Expectations
Meets Expectations
The writing
demonstrates a
sophisticated clarity,
conciseness, and
correctness; includes
thorough details,
relevant data, and
information; and is
extremely well
organized. Punctuation,
spelling, and
capitalization are all
correct. There are no
errors (0 errors).
The writing is
accomplished in terms of
clarity and conciseness
and contains only a few
errors; includes sufficient
details, relevant data,
and information; and is
well organized.
Punctuation, spelling,
and capitalization are
generally correct with
few errors (1–2 errors).
Approaches
Expectations
Does Not Meet
Expectations
The writing lacks clarity
or conciseness and
contains numerous
errors; provides
insufficient detail,
relevant data, and
information; and lacks
organization. Errors in
punctuation, spelling,
and capitalization
detract from the
readability of the paper
(3–4 errors).
The writing is
unfocused, rambling,
or contains serious
errors; lacks detail,
relevant data, and
information; and is
poorly organized.
There are many
distracting errors in
punctuation, spelling,
and capitalization (>4
errors).
2.5 pt
s
Week 8 Signature Assignment Rubric
Criteria
Ratings
This criterion is
linked to a Learning
OutcomeAPA Style
2.5 to >2.23 pts
2.23 to >1.8 pts
1.8 to >1.48 pts
1.48 to >0 pts
Exceeds Expectations
Meets Expectations
Uses APA Style guidelines
accurately and
consistently to cite
sources (0 errors).
Sources are used and
cited expertly and are
peer-reviewed, relevant
sources.
Uses APA Style
guidelines with minor
violations to cite sources
(1–2 errors). Sources are
somewhat relevant but
may be limited in
scholarly nature.
Approaches
Expectations
Does Not Meet
Expectations
Reflects incomplete
knowledge of APA Style
guidelines (3–4 errors).
Sources are not cited or
cited with many errors.
Sources are not scholarly
in nature.
Does not use APA
Style guidelines. No
scholarly research is
evident. Does not
meet the required
number of sources.
Total Points: 50
Pts
2.5 pt
s
Title
Your name
Course
Date
WARNING:
• Read and review Chapter 13 and 14 in your textbook
• Read all instructions carefully
• Watch all videos as they provide all necessary information
• This is an INDIVIDUAL/INDEPENDENT project
• DO NOT plagiarism from the Internet
• TurnIn is active and will flag any similarities
• Paraphrase and summarize
• Remember, less text on slides (use note section to add explanations
• Can modify slides anyway you want
• Make sure your background, if any, is not too dark and font size must
be at least 24 points.
• Review Rubric and provide your answers based on that
• This assignment is worth 50 points, minimal effort will be rewarded
with minimal points.
Background
Might include such as:
• What is titration
• Purpose of titration
• Why it is done
• etc
Note: Remember that your slides
should not contain a lot of text,
use note section to add
definitions, more examples,
explanations
Importance of titration in nursing
and in your future career
At least 5 sentences or bullet points and explanations in the notes.
Don’t forget citations for your references
Figures/pictures are welcome to emphasize the point
Instrumentation
List the instruments and glassware used when performing a
titration.
You can use bullet points and pictures:
You might use notes section to explain the purpose of each
Chemicals
What chemicals are needed?
Can be separate slide or you can combine with Instrumentation
section
Procedure
List and explain the procedures for this experiment
Remember, your purpose is to present detailed enough steps that I
can look at them and perform the experiment by myself.
You are the teacher and I am the student
Advice: use bullet points, pictures and diagrams.
Hint: the provided YouTube video has all the experimental steps
Observations and Expectations
List the observations and write your expectations. This
might include color change and when the equivalence
point (endpoint) might be reached.
When do you stop and why.
Week 7 Labster Module will be helpful
Visual aid might be helpful to convey your point
Results
Given…
The concentration of NaOH (from the bottle):
__0.250 M___
The volume of vinegar used (that you poured in the flask): __7.50 mL____
Results
Step:
Trial 1
Trial 2
Trial 3
(1)
Initial NaOH level in
buret
0.00 mL
0.00 mL
0.00 mL
(2)
Final NaOH level in
buret
15.10 mL
16.10 mL
15.70 mL
(3)
Volume (mL) of
NaOH used
You must do your calculations to
complete steps 3-10
Calculations:
This is just an information slide:
You must show all your step-by-step calculations with proper formulas, units, and significant
figures (for finals answers for Molarity of Acetic Acid and % Mass of Acid in Vinegar)
review Chapter 2 for multi-step calculations:
addition/subtraction: fewest decimal places
multiplication/division: fewest significant figures
You must complete steps 3-10 (steps 1-2 are given to your as hypothetical data)
You can either type your calculations and answers (which might be time-consuming) or write
them on the paper/digital tablet and insert them as pictures in the slides. Make sure they
are easily read.
You can have more than two steps on each page but…
Make sure that your calculations are legible and neat. Remember, if I cannot follow or
understand what is written, I will go by the assumption it is not there.
Calculations:
Average volume of NaOH used (mL):
Average volume of NaOH used (L):
Calculations:
Moles of NaOH used in titration:
Moles of HC2H3O2 neutralized by NaOH:
Calculations:
Molarity of HC2H3O2 (M):
Calculations:
Grams of HC2H3O2 (g):
Calculations:
Percent (m/v) of HC2H3O2 in vinegar (%):
Conclusion:
This is optional!
References:
At least two scholarly sources should be used (your textbook
can be one of the sources). For proper referencing of your
resources consult Library on Canvas, APA 7th Edition Guide.
Review how to properly cite and reference:
Webpages
YouTube videos
Texbook, etc