CHM130LL Lab 2 Measurements: Accuracy and Precision Name : _____________________________ A. Data Tables  Data Table 1 (12 points) Measurement Data (1) Length of aluminum plastic packet (2) Height of aluminum plastic packet (3) Temperature of faucet water (3) Temperature of ice water (5) Volume of water in 10-mL  graduated cylinder (6) Volume of water in 50-mL  graduated cylinder Data Table 2 (10 points) Measurement Data (1) Inside diameter of 50-mL  graduated cylinder (2) Height of 50-mL graduated cylinder (3) Water temperature (4) Initial volume of water in 50-mL  graduated cylinder 10.0 mL (5) Mass of water in the 50-mL  graduated cylinder 10.0 g (6) Volume of water and aluminum shot in 50-mL graduated cylinder (7) Mass of aluminum shot (given on outside of packet) B. Insert the picture of the plastic packet containing aluminum shots with student’s name and MEID (25 points) C.  Follow-Up Questions (Show all calculations for full credits) Part I 1. Convert the length and height measurements for the packet that contains the aluminum shot from units of cm to units of mm using the unit-factor method. (10 points) 2. Convert the temperature measurements for the faucet water and the ice water from oC to oF, using the following equation: oF =1.8(oC) + 32. (10 points) 3. Convert the volumes of the water in the 10-mL and 50-mL graduated cylinders from mL to L, using the unit-factor method. (10 points) 4. Looking at your measurements for the volumes of water in the 10-mL and 50-mL graduated cylinders, are your values identical? Discuss at least two reasons why the measurements were not identical. (5 points) Part II 5. Calculate the volume of the 50mL graduated cylinder using your measurements of diameter and height, using the formula V=   πr2h (r=½ diameter). This is your experimental value. (10 points) 6. Assuming the accepted value of the volume of the graduated cylinder is 50.00 mL, calculate the percent error of your volume calculation, using the following formula and the experimental value calculated in question 5: (10 points) Percent Error = | accepted value - experimental value  accepted value | x 100 7. Calculate the mass of 10ml of water in the graduated cylinder using 1/5 the volume calculated in question 5, the density of water of 1.00 g/mL and this given the formula: (10 points) Density = mass volume 8. Using 10.0 g as the accepted value for the mass of the water, and the mass calculated in #7 above as the experimental value, calculate the percent error of your mass calculation, using the same formula as in #6 above. (10 points) 9. Calculate the volume of aluminum shot added to the graduated cylinder, using the information from Data Table 2 in the following formula: (10 points) Volume of water and aluminum shot in 50-mL graduated cylinder(#6) – Initial volume of water in 50-mL graduated cylinder (#4) = volume of aluminum shot 10. Calculate the experimental value for density of the aluminum shot based on its mass (given on.

1. CHM130LL
Lab 2
Measurements: Accuracy and Precision
Name : _____________________________
A. Data Tables
Data Table 1 (12 points)
Measurement
Data
(1) Length of aluminum plastic packet
(2) Height of aluminum plastic packet
(3) Temperature of faucet water
(3) Temperature of ice water
(5) Volume of water in 10-mL
graduated cylinder
(6) Volume of water in 50-mL
graduated cylinder
Data Table 2 (10 points)
Measurement
Data
(1) Inside diameter of 50-mL
graduated cylinder
(2) Height of 50-mL graduated cylinder
(3) Water temperature

2. (4) Initial volume of water in 50-mL
graduated cylinder
10.0 mL
(5) Mass of water in the 50-mL
graduated cylinder
10.0 g
(6) Volume of water and aluminum shot in 50-mL graduated
cylinder
(7) Mass of aluminum shot (given on outside of packet)
B. Insert the picture of the plastic packet containing aluminum
shots with student’s name and MEID (25 points)
C. Follow-Up Questions (Show all calculations for full credits)
Part I
1. Convert the length and height measurements for the packet
that contains the aluminum shot from units of cm to units of mm
using the unit-factor method. (10 points)
2. Convert the temperature measurements for the faucet water
and the ice water from oC to oF, using the following
equation: oF =1.8(oC) + 32. (10 points)
3. Convert the volumes of the water in the 10-mL and 50-mL
graduated cylinders from mL to L, using the unit-factor method.
(10 points)
4. Looking at your measurements for the volumes of water in
the 10-mL and 50-mL graduated cylinders, are your values
identical? Discuss at least two reasons why the measurements
were not identical. (5 points)
Part II
5. Calculate the volume of the 50mL graduated cylinder using
your measurements of diameter and height, using the
formula V= πr2h (r=½ diameter). This is your experimental
value. (10 points)
6. Assuming the accepted value of the volume of the graduated
cylinder is 50.00 mL, calculate the percent error of your volume

3. calculation, using the following formula and the experimental
value calculated in question 5: (10 points)
Percent Error
=
|
accepted value - experimental value
accepted value
|
x
100
7. Calculate the mass of 10ml of water in the graduated cylinder
using 1/5 the volume calculated in question 5, the density of
water of 1.00 g/mL and this given the formula: (10 points)
Density
=
mass
volume
8. Using 10.0 g as the accepted value for the mass of the water,
and the mass calculated in #7 above as the experimental
value, calculate the percent error of your mass calculation,
using the same formula as in #6 above. (10 points)
9. Calculate the volume of aluminum shot added to the
graduated cylinder, using the information from Data Table 2 in
the following formula: (10 points)
Volume of water and aluminum shot in 50-mL graduated
cylinder(#6) – Initial volume of water in 50-mL graduated
cylinder (#4) = volume of aluminum shot
10. Calculate the experimental value for density of the
aluminum shot based on its mass (given on the outside of the
packet) and its volume calculated in #9 above, using the
following formula: (10 points)
Density of Al
=
mass of Al shot

4. volume of Al shot
11. If the accepted value for the density of aluminum is 2.70
g/mL, calculate the percent error of your density calculation,
using the formula listed in #6 above. (10 points)
12. List at least 2 potential sources of error in this experiment?
(6 points) Why is it necessary to know the error of one's
measurements? (4 points)
13. Suggest at least three ways to minimize error, if you were to
repeat the experiment. (9 points)
Part III
14. Use the weight of an elephant (as given in Part III of the lab
procedure) in scientific notation to complete two unit
conversions, from lbs to kg and from kg to mg. Show all work
for your conversions. (10 points)
15. Explain why the use of scientific notation in chemistry is
very important. Give an example for justification your answer
(10 points)
16. Give an example of a time when you have used unit
conversions in everyday life, and explain why that knowledge is
useful. (9 points)
Copyright © 2017 Rio Salado College. All Rights Reserved.
Research Paper-100 points
TOPIC- Past history of RUSSIA’S COMMUNISM
INFILTRATION
WITH THE UNITED STATES.
most of your paper must be pre-Trump administration. You can
have

5. one page on contemporary issues. Everything else must have
taken
place in the past so that you can truly write a history paper.
Also, you
would need to show both sides of the argument (for/against)
concerning communism in the US (at least a couple of
paragraphs). If
you can do all of that, go for it.
You will write a research paper on a US History topic of your
choice with my
approval.
STEPS TO COMPLETION:
STEP 1. SELECT A TOPIC IN iCollege CONTENT-
RESEARCH PAPER
INFOMRATION OR SELECT ONE OF YOUR OWN.
STEP 2. SUBMIT YOUR TOPIC FOR APPROVAL IN THE
RESEARCH
PAPER DISCUSSION BOARD NO LATER THAN THE THIRD
WEEK OF
CLASS! CHECK BACK FOR APPROVAL AND FEEDBACK.
STEP 3. ONCE YOU HAVE TOPIC APPROVAL-FIND AT
LEAST 6

6. CREDIBLE SOURCES. AT LEAST ONE SHOULD BE FROM
A LIBRARY.
STEP 4. REVIEW THE RESEARCH PAPER EVALUATION
RUBRIC
BELOW. IT IS ALSO AVAILABE IN CONTENT-IN
RESEARCH PAPER
INFORMATION.
STEP 5. REVIEW ALL LINKS IN THE RESEARCH PAPER
INFORMATION MODULE BEFORE YOU START WRITING
STEP 6. STATE YOUR THESIS
STEP 7. MAKE A TENTATIVE OUTLINE FOR YOURSELF
STEP 8. ORGANIZE YOUR NOTES
STEP 9. WRITE YOUR FIRST DRAFT: 5-7 Double-spaced
typed double
spaced pages; Times New Roman 12 is the font standard; MLA,
Chicago or
APA styles are accepted.
STEP 10. REVISE YOUR OUTLINE AND DRAFT
STEP 11. SUMBIT A DRAFT/FINAL OF YOUR RESEARCH
PAPER TO CHECK

7. FOR PLAGARISM-CLICK ON YOUR PERCENTAGE AND
SEE YOUR
ORIGNALITY REPORT. REVISE REPORT IS HIGHER THAN
20%-WEEK
ELEVEN. IF YOU ARE SATISFIED WITH YOUR WEEK 11
DRAFT YOU
DO NOT NEED TO MAKE ANOTHER SUBMISSION IN
WEEK 12.
6. SUMBIT YOUR FINAL RESEARCH PAPER-WEEK
TWELVE. IF YOU
ARE SATISFIED WITH YOUR WEEK 11 DRAFT YOU DO
NOT NEED TO
MAKE ANOTHER SUBMISSION IN WEEK 12.
As you complete your paper ask yourself the following
questions:
1. Is my thesis statement concise and clear?
2. Did I follow my outline? Did I miss anything?
3. Are my arguments presented in a logical sequence?
4. Are all sources (5 OR MORE) properly cited to ensure that I
am not plagiarizing?
5. Have I proved my thesis with strong supporting arguments?
6. Have I made my intentions and points clear in the essay?

8. 7. Did I begin each paragraph with a proper topic sentence?
8. Have I supported my arguments with documented proof or
examples?
9. Any run-on or unfinished sentences?
10. Any unnecessary or repetitious words
11. Varying lengths of sentences?
12. Does one paragraph or idea flow smoothly into the next?
13. Any spelling or grammatical errors?
Historical
Quality (60%)
Needs
Improvement
Adequate Good
1. Historically accurate
- majority of info used has
been misinterpreted/used
incorrectly or appropriately

9. or is not relevant to the
topic
- the majority of info used
is correct with a couple of
misrepresentations or
misinterpretations
- all info used is correct
with only one
misrepresentation or
misinterpretation
2. Show analysis and
interpretation
- little to no
analysis evident - mostly
restatements of evidence
or summaries of content
- thesis is
simplistic and basic with
no analysis included
- some use of

10. analysis and
interpretation
- very
inconsistent and much of
“analysis” does not
actually match/make
logical sense
-thesis has hint of
analysis and might be
simplistic
- inconsistent use
of analysis and
interpretation
- most is
explained well and clearly
- little incorrectly
analyzed
-thesis has some analysis
3. places topic in
historical context
- writing contains no
description of the
historical context in which
the topic is set
- writing has only hint of

11. the context in which topic
is set
- writing includes some
description of context in
which topic is set
4. shows wide research - fewer than 6 sources were
used
- at least 6 sources were
used in paper
- more than 7 sources
were used in paper
14. Quotes accurate in source, spelling, and punctuation?
15. Are all my citations accurate and in correct format?
16. Did I avoid using contractions? Use "cannot" instead of
"can't", "do not" instead of
"don't"?
17. Did I use third person as much as possible? Avoid using
phrases such as "I think", "I
guess", "I suppose"
18. Have I made my points clear and interesting but remained

12. objective?
Did I leave a sense of completion for my reader(s) at the end of
the paper? 19.
Did I use my quotes correctly and does my paper have too many
of them?
Research Paper Rubric 100 Points
Relation to
Theme
(20%)
Needs
Improvement
Adequate Good Excellent
1. Clearly relates
topic to theme
- does not
communicate
relationship between
topic and theme

13. - attempts to
communicate
relationship
between topic
and theme
- communicates
relationship
between topic
and theme
- clearly
communicates
relationship
between topic and
theme
2. demonstrates
significance of topic
in US history and
draws conclusions

14. - does not
demonstrate
significance of topic
in US history or draw
any conclusions
- attempts to
demonstrate
significance of topic
in US history and
draws conclusions
- demonstrates
significance of topic
in US history and
draws conclusions
- clearly
demonstrates
significance of topic
in US history and

15. draws conclusions
Clarity of
Presentation
(20%)
Needs
Improvement
Adequate Good Excellent
5. uses available
primary sources
- most to all sources were
secondary sources (few if
any primary sources were
used)
- few primary sources
were mixed with the
secondary sources used
in paper

16. - many primary sources
were used with various
viewpoints
6. research is balanced - research incorporated in
paper from only 1-2 kinds
of sources
- research incorporated
in paper from only print
and Internet sources
- research incorporated in
paper from some different
kinds: print, Internet,
graphics
1. Paper is original,
clear, appropriate,
organized, and
wellpresented
- paper has multiple
issues with many of
the

17. following: originality,
appropriateness,
organization,
presentation
- paper has minor
issues withonly ONE
of the following:
originality,
appropriateness,
organization,
presentation
- paper is mostly
original,
appropriate,
organized and
presented
- Paper is original,
clear, appropriate,

18. organized, and
wellpresented
2. Text is clear,
grammar and
spelling is correct;
paper is neatly
prepared
- contains more than
one mistake in
spelling, title page,
works cited page, or
graphics
- contains at least one
mistake in spelling, title
page, works cited page,
or graphics
- almost all of the
following are

19. clearly done: Text,
grammar, spelling,
neat
- Text is clear,
grammar and
spelling is correct;
paper is neatly
prepared