annotated-AP%20BIO%20Osmosis%20Lab
.pdf
keyboard_arrow_up
School
Gwinnett Technical College *
*We aren’t endorsed by this school
Course
1003
Subject
Chemistry
Date
Dec 6, 2023
Type
Pages
8
Uploaded by HighnessPower5225
Caleb Gu
AP Lab 4: Diffusion, Osmosis, and Water Potential
Before you begin this lab, review the relevant information in the content and in your textbook. Also prepare by
reading over this lab in the AP Biology Investigative Lab Manual on pages S51-S54.
Prelab (IMPORTANT): Watch the following video throughout these labs
https://www.youtube.com/watch?v=LeS2-6zHn6M
Lab 1: Effects of Osmotic Potential Differences Across a Membrane
Materials:
●
6 ~ 20 cm strips of dialysis tubing
●
0.0 M sucrose solution – distilled
water
●
0.2 M sucrose solution
●
0.4 M sucrose solution
●
0.6 M sucrose solution
●
0.8 M sucrose solution
●
1.0 M sucrose solution
●
Distilled water
●
Timer
●
Digital scale
●
6 clear plastic cups
Lab 1 Hypothesis
: Think about what your variables are and construct a hypothesis predicting the relationship
between them.
As the independent variable of the concentration of the sucrose solution increases, the dependent variable of
rate of osmosis will also.
Procedure: You will conduct the experiment using the virtual lab here (don’t worry about recording
this data, you’ll be provided data):
https://video.esc4.net/video/assets/Science/Biology/Gateway%20Resources/cell%20homeostasis%20vi
rtual%20lab%20-%20activity/index.html
Answer the questions after the virtual lab here.
1.
Which dialysis tubes had little or no change in mass after a 24-hour period?
A and D
2.
Why was pure water used as a control group?
The control group provides a standard for comparison for the experimental group
3.
Why didn’t the mass of dialysis tubes “A” and “D” change over the 24-hour time frame?
The concentration both inside and outside the dialysis tube is the same
Data
Concentration of sucrose solution inside dialysis bags
(outside always dH2O)
0.0 M (water)
0.2 M
0.4 M
0.6 M
0.8 M
1.0 M
Class mean
1.80%
7.8%
13.8%
18.9%
23.4%
26.2%
Class standard deviation
8.0%
8.9%
9.9%
12.2%
14.6%
7.6%
Class sample size (n)
27
27
27
27
27
24
Graph the above data (remember what your variables are and where they go!) and paste
your graph below:
Analysis Questions
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
Related Questions
(References)
Which solvent, water, or hexane (Ce H4) would you choose to dissolve each of the following:
Clear All
CBI4
Sc(NO3)3
Water
CH3 OH
Нехane
HCI
C Hs
CH3 (CH2)15 CH, OH
Cengage Learning | Cengage Technical Support
回く
arrow_forward
w w w w w
T
Concentration (grams/kg H₂O)
1000
900
800
700
600
500
400
300
200
100
0
0
Solubility Curve for Potassium Dichromate (K₂Cr₂O₂)
10 20
30 40 50 60 70 80 90 100
Temperature (Celsius)
Use the solubility curve for questions 22-25.
You put 480 g K₂Cr₂O, in 1 kg of water? At which temperature will the
22. solution be saturated?
A. 40 °C
B. 70 °C
C. 1000 °C
D. Equal amounts of K₂Cr₂O; will dissolved at all of the listed
temperatures.
You put 150 g K₂Cr₂O7 in 1 kg of water? At which temperature will the
23. solution be saturated?
A. 30 °C
B. 50 °C
C. 80 °C
D. K₂Cr₂O, will dissolved equal fast at all of the listed temperatures.
arrow_forward
please calculate the concentration in ppm (last column) for each solution
arrow_forward
Examine the solubility chart below and answer questions 5-12
300
Sugar
260
KNO
220 -
* 180
140
NaBr
100
KBr
60
KCL
Naci
20
Ce,(so
20
40
60
80
100
Temperature ("C)
5 hi
ost soluble in water at 0°C?
5.
D. NaBr
E. Ce2(SOa)3
6. Whir
st soluble in water at 50°C?
6.
D. NaBr
E. Ce2(SO4)3
7. Which innic
soluble in water at 60°C?
7.
D. NaBr
E. Ce2(SO4)3
8. WLinh i
- st soluble in water at 70°C?
8.
D. NaBr
E. Ce2(SO4)3
9. Which ionic solid is most soluble in water at 80°C?
9.
A. sugar (C12H22011)
B. KNO3
C. NANO3
D. NaBr
E. Ce2(SO4)3
Solubility (g solute per 100 g H,0)
arrow_forward
Using your graph, calculate the osmosis rate for each solution (cm the column rose/amount of time-this is the slope of your line)
arrow_forward
Concentration of Acetic Acid in a Vinegar Solution.
Average molarity of
NaOH
Volume HC₂H30₂
sample
Final buret reading
Initial buret reading
Volume NaOH
(Show all units and all
calculations)
Molarity of HC₂H30₂
(unrounded)
Average molarity
of HC₂H302
(unrounded)
Deviations
Average deviation
Best estimate for
molarity of
HC₂H302
Average mass percent
HC₂H302
46.4mL
Oml
Ran out of Base
↓ ↓
↓ ↓
10.014
HOA
je beart
giov
isults weari?!
ferottelucuny
Cambia)
10
Kousad
Question
1. A Rolaids tablet contains calcium carbonate that neutralizes stomach acid. If 44.55 mL of 0.448
M hydrochloric acid is required to neutralize one tablet, how many milligrams of calcium
carbonate are in a Rolaids tablet?
CaCO, (s) + 2HCl(aq) → CaCl₂ (aq) + H₂O (1) + CO₂ (g)
arrow_forward
Calculate the solubility of CaF2 in water at 25 °C. You'll find K data in the ALEKS Data tab.
sp
Round your answer to 2 significant digits.
0 -/-
L
Explanation
80°F
Partly sunny
Check
Q Search
LD
Ⓒ2023 McGra
arrow_forward
Can you plz help me and thankyou so much!
arrow_forward
Please provide only typed answer solution
No need of handwritten answer
arrow_forward
What TWO things could be done to increase the solubility of a specific gas in solution?
esc
lock
Edit Format Table
12pt v Paragraph
Р
!!
1
Q
A
2
BIU
*
W
S
3
Al
E
BV T² v
4
R
%
5
D F
T
Ev Ev
A
6
G
7
H
To
188
O wo
*
8
arrow_forward
= 209; S =32 ).
What is the solubility of Bi2S3 in g/L (At. Mass: Bi =
Ksp Bi2S3= 1.6 x 10-72
Answer format: 1.00x10-14 (Don't put the unit. Round-off your final answer in two decimal place)
arrow_forward
Suppose that 15M of NaCl solution with a volume of 15L is heated and loses 2000ml of its water content.What would be the final concentration of your NaCl sample? (MW: Na = 23g / mol , Cl = 35q / mol, H=1g/mol,O=16g/mol)
A. 3.75 MB. 0.0375 MC. 37.5 MD. 375.0 M
arrow_forward
Examine the solubility chart below and answer questions 5-12
a00
Sugar
200
KNO,
220
180
NANO,
140
NaBr
100
KCL
Naci
20
Ce (S0),
20
40
60
80
100
Temperature ("C)
5. Which ionic solid is most soluble in water at 0°C?
A. sugar (C12H22011)
В. KNO
C. NANO3
D. NaBr
E. Ce:(SO4)3
6. Which ionic solid is most soluble in water at 50°C?
A. sugar (C12H22O11)
В. KNO,
C. NANO3
D. NaBr
E. Ce:(SO4)3
loH5 00t ad anyos ) Aaygnos
arrow_forward
You are creating a standard curve for a protein experiment. You have to stock solution of BS a and would like to obtain dilutions. Explain how you would create a 1:1000 dilution of your protein stock solution.
arrow_forward
2.
Questions:
1.
CHM-202 Lab 2 Freezing Point Depression Rev2 G6-2022
10/14
From your understanding of colligative properties, how would you design an experiment to
measure the freezing point of a material which freezes at -2 °C using the same apparatus used in
this laboratory and any chemical reagents commonly found in a chemical laboratory. Ice is the
only material you have available to cool the solutions.
If you measured the boiling point of the solution used in Trial 4, would you predict it would have
a boiling point equal to, higher than, or lower than the boiling point of pure cyclohexane?
Explain your answer.
arrow_forward
A reagent bottle contains 250 cm3 of 0,4 mol.dm–3 oxalic acid(C2O4H2) solution. Calculate the mass of pure oxalic acid thatmust be dissolved in this solution so that its new concentration is 0,6 mol.dm–3. Assume that the volume of the solution remainsconstant
arrow_forward
Examine the solubility chart below and answer questions 5-12
300
Sugar
260
KNO,
220
180
NANO
140
Nabr
100
60
KCL
Naci
20
Ce (So)
20
40
60
100
Temperature ("C)
5. Which ionic solid is most soluble in water at 0°C?
A. sugar (C12H22011)
B. KNO3
C. NANO3
D. NaBr
E. Ce:(SO4)3
(oH 6 00t ad anyos ) Aaygnos
arrow_forward
chools.schoology.com/common-assessment-delivery/start/4573067641?action%3Donresume&submissionld%3547892539
150
140
130
120
110
100
NANO
90
80
70
60
NH C
Ka
Náci
50
40
30
20
KCIÓ,
10
Cez(so
10 20 30 40 50 60 70 80 90 100
Temperature (C)
The compound with the least solubility at 50 °C is
OKI
O NANO3
O KNO3
O NH3
O NH&CI
O KCI
O NaCI
O KCIO3
O Cex(SOa)a
DELL
&
Grams of solute
arrow_forward
May you please do question one and two.
arrow_forward
Please help me with the last box form the trail.
arrow_forward
None
arrow_forward
Pre-lab question #8: Suppose you were dissolving a metal such as zinc with
hydrochloric acid. How would the particle size of the zinc affect the rate of its
dissolution? As the particle size of the zinc increases, the rate of dissolution
AA (decreases/increases).
arrow_forward
e-Services
Academic Departments
Answer the questions for the graph given below.
100
90
NaNO
80
70
60
CaCl
50
Pb(NO3)2
40
KCI
NaCl
30
20
KCIO,
10
Ce (SC
10 20 30 40 50 60 70 8C
0.
Temperature (°C)
DELL
Solubility (g of salt in 100 g H,O)
FONX
arrow_forward
Don't copy paste ans please
arrow_forward
Please help! Thank you
arrow_forward
write legiblyshow the complete solution
arrow_forward
Calculate the solubility of CaF, in water at 25 °C. You'll find Kn
data in the ALEKS Data tab.
Round your answer to 2 significant digits.
x10
arrow_forward
A student prepares a 0.71 Maqueous solution of trimethylacetic acid (C,H,CO,H). Calculate the fraction of trimethylacetic acid that is in the dissociated form
in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource.
Round your answer to 2 significant digits.
Oxto
?
arrow_forward
Help please, the data is in the second picture.
arrow_forward
Solubility of solids in liquids.
In the assignment, you need to elaborate
the following points: world limit.(1000-1200)
* Effect of Temperature.
* Modification of molecular structure.
* pH.
* Common ion effect.
arrow_forward
Table 1: Temp vs. solubility data of ammonium chloride.
Test tube
g NH4Cl/10 mL H2O
Crystallization temp. (ºC)
1
1.0 g/10 mL H2O
10 oC
2
1.8 g/10 mL H2O
20 oC
3
2.9 g/10 mL H2O
40 oC
4
3.8 g/10 mL H2O
65 oC
5
4.4 g/10 mL H2O
95 oC
Use the table to plot a solubility curve for ammonium chloride on the graph provided below. For the best fit line, use a smooth curve. "Mass of Solute per 100 mL of H2O," should be written on the y-axis (use increments of 2g for every box). "Temperature (°C)" should be written on the x-axis (use increments of 10 °C for every 2 boxes).
arrow_forward
SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Related Questions
- (References) Which solvent, water, or hexane (Ce H4) would you choose to dissolve each of the following: Clear All CBI4 Sc(NO3)3 Water CH3 OH Нехane HCI C Hs CH3 (CH2)15 CH, OH Cengage Learning | Cengage Technical Support 回くarrow_forwardw w w w w T Concentration (grams/kg H₂O) 1000 900 800 700 600 500 400 300 200 100 0 0 Solubility Curve for Potassium Dichromate (K₂Cr₂O₂) 10 20 30 40 50 60 70 80 90 100 Temperature (Celsius) Use the solubility curve for questions 22-25. You put 480 g K₂Cr₂O, in 1 kg of water? At which temperature will the 22. solution be saturated? A. 40 °C B. 70 °C C. 1000 °C D. Equal amounts of K₂Cr₂O; will dissolved at all of the listed temperatures. You put 150 g K₂Cr₂O7 in 1 kg of water? At which temperature will the 23. solution be saturated? A. 30 °C B. 50 °C C. 80 °C D. K₂Cr₂O, will dissolved equal fast at all of the listed temperatures.arrow_forwardplease calculate the concentration in ppm (last column) for each solutionarrow_forward
- Examine the solubility chart below and answer questions 5-12 300 Sugar 260 KNO 220 - * 180 140 NaBr 100 KBr 60 KCL Naci 20 Ce,(so 20 40 60 80 100 Temperature ("C) 5 hi ost soluble in water at 0°C? 5. D. NaBr E. Ce2(SOa)3 6. Whir st soluble in water at 50°C? 6. D. NaBr E. Ce2(SO4)3 7. Which innic soluble in water at 60°C? 7. D. NaBr E. Ce2(SO4)3 8. WLinh i - st soluble in water at 70°C? 8. D. NaBr E. Ce2(SO4)3 9. Which ionic solid is most soluble in water at 80°C? 9. A. sugar (C12H22011) B. KNO3 C. NANO3 D. NaBr E. Ce2(SO4)3 Solubility (g solute per 100 g H,0)arrow_forwardUsing your graph, calculate the osmosis rate for each solution (cm the column rose/amount of time-this is the slope of your line)arrow_forwardConcentration of Acetic Acid in a Vinegar Solution. Average molarity of NaOH Volume HC₂H30₂ sample Final buret reading Initial buret reading Volume NaOH (Show all units and all calculations) Molarity of HC₂H30₂ (unrounded) Average molarity of HC₂H302 (unrounded) Deviations Average deviation Best estimate for molarity of HC₂H302 Average mass percent HC₂H302 46.4mL Oml Ran out of Base ↓ ↓ ↓ ↓ 10.014 HOA je beart giov isults weari?! ferottelucuny Cambia) 10 Kousad Question 1. A Rolaids tablet contains calcium carbonate that neutralizes stomach acid. If 44.55 mL of 0.448 M hydrochloric acid is required to neutralize one tablet, how many milligrams of calcium carbonate are in a Rolaids tablet? CaCO, (s) + 2HCl(aq) → CaCl₂ (aq) + H₂O (1) + CO₂ (g)arrow_forward
- Calculate the solubility of CaF2 in water at 25 °C. You'll find K data in the ALEKS Data tab. sp Round your answer to 2 significant digits. 0 -/- L Explanation 80°F Partly sunny Check Q Search LD Ⓒ2023 McGraarrow_forwardCan you plz help me and thankyou so much!arrow_forwardPlease provide only typed answer solution No need of handwritten answerarrow_forward
- What TWO things could be done to increase the solubility of a specific gas in solution? esc lock Edit Format Table 12pt v Paragraph Р !! 1 Q A 2 BIU * W S 3 Al E BV T² v 4 R % 5 D F T Ev Ev A 6 G 7 H To 188 O wo * 8arrow_forward= 209; S =32 ). What is the solubility of Bi2S3 in g/L (At. Mass: Bi = Ksp Bi2S3= 1.6 x 10-72 Answer format: 1.00x10-14 (Don't put the unit. Round-off your final answer in two decimal place)arrow_forwardSuppose that 15M of NaCl solution with a volume of 15L is heated and loses 2000ml of its water content.What would be the final concentration of your NaCl sample? (MW: Na = 23g / mol , Cl = 35q / mol, H=1g/mol,O=16g/mol) A. 3.75 MB. 0.0375 MC. 37.5 MD. 375.0 Marrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning