CHM 101L M1 Intro to Science Lab Report
docx
keyboard_arrow_up
School
Southern New Hampshire University *
*We aren’t endorsed by this school
Course
101L
Subject
Mathematics
Date
Apr 3, 2024
Type
docx
Pages
6
Uploaded by CountRaven2946
Faster Plop, Plop, Fizz, Fizz: A Scientific Method
Investigation
Michael East
14 January 2024
1
Data
Activity 1
1.
The Hypothesis that I am going to work with today, Is that if the water is warmer then the tablet will dissolve faster than if it would be if it were put
in cold water.
Data Table 1
Run
No.
Cup
Temp. (˚C)
Time (sec.)
Observations
1
C 7c
143 sec
When the Alka-Seltzer was dropped
into the cup, it dissolved very slowly,
and the tablet instantly dropped to the
bottom. 1
RT 21c
64 sec
When the tablet was dropped into the
room temperature water it dissolved
faster than it did when the water was
cold and still dropped to the bottom of
the cup immediately 1
H
72c
15 sec
When the Tablet was dropped into the
cup of hot water, it started to very
quickly dissolve, and the tablet was
mostly gone by the time it hit the
bottom of the cup.
2
C
5c
150 sec
When the tablet was dropped into the
cup it dissolved very slowly and the
tablet instantly went to the bottom of
the cup.
2
RT
23c
56 sec
When the tablet was dropped into the
cup it dissolved faster than it did when
it was dropped into the cold water and
instantly went to the bottom of the
cup.
2
H
70c
19 sec
When the tablet was dropped into the
cup it dissolved extremely fast and
instantly went to the bottom of the
cup.
3
C
8c
141 sec
When the tablet was dropped into the
cup it dissolved very slow and
instantly sank to the bottom of the
© 2016 Carolina Biological Supply Company
2
Run
No.
Cup
Temp. (˚C)
Time (sec.)
Observations
cup.
3
RT
20c
64 sec
When I dropped the tablet into the
water, it dissolved quicker than it had
when I dropped it into the cold water.
The tablet again sank to the bottom of
the cup
3
H
75c
11 sec
When I dropped the tablet into the
water, it had dissolved faster than it
took to reach the bottom of the cup. Avg.
C
6.66 c
144.66 sec
Avg.
RT
21.33 c
61.33 sec
Avg.
H
72.33 c
15 sec
2.
Using graphing software such as Excel®, graph the results of Activity 1. Please see the Introduction to Graphing manual for guidance.
0
10
20
30
40
50
60
70
80
0
20
40
60
80
100
120
140
160
f(x) = − 1.7 x + 130.49
Plop Plop Fizz Fizz Experiment Michael East 14 Jan 2024
Series2
Time
Linear (Time)
Temperature (Celisus)
Time(seconds)
3.
What are the two variables that you graphed?
I graphed the Time and the temperature of the water for the variables.
4.
Which is the independent variable? Should it be on the X- or Y-axis? Why?
For me, temperature is the independent variable here so it got the x axis. 5.
Which is the dependent variable? Should it be on the X- or Y-axis? Why?
Time is the dependent variable here to me. If the independent variable is changed then it could make the dependent variable change as well. © 2016 Carolina Biological Supply Company
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help
3
6.
Predict how many seconds it will take to dissolve an Alka-Seltzer® tablet in 200 mL of water at the following temperatures. Use the exponential trend line to find the function used in predicting the time. If needed, please refer to the Introduction to Graphing manual for guidance.
a.
35°C I got 47.03
b.
60°C I got 21.14
c.
80°C I got 10.55
Activity 2
7.
List five questions about the rate at which Alka-Seltzer® tablets dissolve if the temperature was held constant and one of the controlled variables was changed. 1.
What if soda were used in the same experiment, would the outcome be
different?
2.
If we used more water and half of a tablet would it also be the same outcome?
3.
If only half of a tablet were used would the outcome be different?
4.
What if a glass cup that the temperature of the glass was manipulated as well, would it affect the time for the tablet to dissolve?
5.
if something were used with a difference in PH levels would it change the speed of our tablet from dissolving?
8.
Develop a new hypothesis based on one of the questions. Remember that
a hypothesis must be testable with empirical or measurable data.
Activity 2 Table
State the hypothesis.
If I drop a tablet into coke soda, then it will dissolve faster
Identify the independent variable.
The sodas temperature
Identify the dependent
variable.
The amount of time it takes to dissolve
List the controlled variables.
The amount of soda used as well as the tablet that will be used
How will the dependent variable be While I will use the timer on my phone to see how long it will take the tablet to dissolve
© 2016 Carolina Biological Supply Company
4
State the hypothesis.
If I drop a tablet into coke soda, then it will dissolve faster
measured?
If the hypothesis is true, what results are expected?
If the table dissolves in soda faster than water then I would say there is sufficient evidence to state that the hypothesis is true
© 2016 Carolina Biological Supply Company
5
Data Table 2 Run
No.
Manipulated
Variable
Time (sec.)
Observations
1
2c
64
The tablet dissolved quick and
stayed at the top when dropped in
the cup
1
16c
26
The tablet dissolved faster than it did with
the cold soda but dissolved at the bottom
of the cup
1
25c
13
The tablet dissolved at the bottom of the
cup again but dissolved very fast and had
broken off into multiple pieces.
2
4c
58
The tablet stayed at the top of the cup
and dissolved slower than the other
temperatures
2
15c
28
The tablet sank to the bottom but
dissolved faster than the cold
temperature
2
28c
10
The tablet again broke into multiple
pieces when dropped into the cup and
dissolved faster than the other
temperatures
3
7c
53
The tablet dissolved at the top of the soda
but faster than cold water
3
11c
24
The tablet dissolved at the bottom of the
soda but again faster than the cold soda
3
31c
7
The tablet broke into multiple pieces
again yet dissolved faster at the bottom
of the cup than all other temperatures Avg.
4.33
58.33
Avg.
14
26
Avg.
28
10
What could have been done in either activity to make the results more reproducible? © 2016 Carolina Biological Supply Company
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help