SlideShare a Scribd company logo
Q1_LC8.1.pptx science measuring physical
SCIENCE 7
First QUARTER- lc 8.1
Matatag curriculum
LESSON 1:
Properties of Solutions
Properties of Solutions
CONTENT
The learners shall learn the properties
of solutions such as solubility and
reaction to litmus determine their use.
LEARNING
STANDARD
The learners shall be able to identify the role
of the solute and solvent in a solution and to
express quantitatively the
amount of solute present in a given volume of
solution.
LEARNING
COMPETENCY
By the end of the lesson, the 80 percent of
the learners will be able to:
1. Define the term "solution" and identify its key
components (solute and solvent).
2. Demonstrate the ability to set up and conduct
laboratory experiments to investigate the
properties of solutions.
3. Appreciate the importance of understanding
solution properties by answering reflections.
OBJECTIVES
I. Activating Prior Knowledge
"What is a
solution?“
I. Activating Prior Knowledge
I. Activating Prior Knowledge
"What is a
solution?“
I. Activating Prior Knowledge
 Definition: A solution is a
homogeneous mixture
composed of two or more
substances.
 It consists of a solute dissolved
I. Activating Prior Knowledge
"Can you
name some
examples
of
I. Activating Prior Knowledge
I. Activating Prior Knowledge
"Can you
name some
examples of
solutions?"
I. Activating Prior Knowledge
Examples may include:
 Saltwater
 Sugary drinks
 Copper sulfate in
water
 Alcohol in water
I. Activating Prior Knowledge
"What are the
main
components
of a
I. Activating Prior Knowledge
I. Activating Prior Knowledge
"What are the
main
components
of a
I. Activating Prior Knowledge
Solute: The substance that is
dissolved in the solvent.
Solvent: The dissolving
medium that dissolves the
solute.
 In this lesson, we will be exploring the key
properties and characteristics of solutions.
 Emphasize the importance of understanding
solution properties, as this knowledge is
fundamental to many areas of chemistry and
science.
B. Establishing Purpose of the Lesson
1. LESSON PURPOSE
B. Establishing Purpose of the Lesson
2. Unlocking Content Vocabulary: Match Type Activity
Solute
Solvent
Solubility
is the substance that is dissolved
in the solvent to form a solution.
is the dissolving medium that
dissolves the solute to form a
solution.
is the ability of a substance
(solute) to dissolve in a given
solvent to form a solution.
Solution
a homogeneous mixture
composed of two or more
substances.
C. Developing and Deepening Understanding
 Definition: A solution is a homogeneous mixture composed
of two or more substances.
 It consists of a solute dissolved in a solvent.
Defining Solutions
C. Developing and Deepening Understanding
 Solute: The substance that is dissolved in the solvent.
 Solvent: The dissolving medium that dissolves the solute.
Components of a Solution
C. Developing and Deepening Understanding
 Temperature: As temperature increases, the solubility
of most solids and gases in liquids increases.
 Pressure: Increasing pressure generally increases
the solubility of gases in liquids.
 Polarity: Polar solutes tend to dissolve in polar
solvents, and non-polar solutes tend to dissolve in
non-polar solvents.
Factors Affecting Solubility
C. Developing and Deepening Understanding
Concentration: The measure of the amount of solute
dissolved in a given amount of solvent or solution.
Measuring Concentration
C. Developing and Deepening Understanding
Different ways to express concentration:
 Molarity: Moles of solute per liter of solution.
 Molality: Moles of solute per kilogram of solvent.
 Mole fraction: The ratio of the moles of solute to the
total moles of all components in a solution.
Measuring Concentration
C. Developing and Deepening Understanding
 Colligative properties: Properties that depend on the
concentration of the solute, not its identity.
Colligative Properties
C. Developing and Deepening Understanding
 The presence of a solute in a
solution increases the boiling
point of the solution compared to
the pure solvent
 The extent of the boiling point
elevation depends on the
concentration of the solute.
Boiling Point Elevation
C. Developing and Deepening Understanding
 The presence of a solute in a
solution decreases the freezing
point of the solution compared to
the pure solvent.
 The extent of the freezing point
depression depends on the
concentration of the solute.
Freezing Point Depression
C. Developing and Deepening Understanding
 Osmotic pressure is the pressure
that must be applied to a solution to
prevent the flow of water molecules
through a semipermeable
membrane.
 Osmotic pressure depends on the
concentration of the solute in the
solution.
Osmotic Pressure
C. Developing and Deepening Understanding
Worked Example
Properties of Solutions
The learners will bring the following materials to perform a simple
activity that highlights the properties of solution.
Materials:
sugar transparent plastic cups of similar sizes
salt 6 cups of water
mongo seeds 6 pieces spoons
powdered juice cheesecloth
C. Developing and Deepening Understanding
Worked Example
Properties of Solutions
Procedure:
1. Predict which among the given samples will dissolve in water.
Write your predictions in Column 2 of Table 1.
2. Put one cup of water in each of the cups.
3. Add ½ teaspoon of each of the six samples. Use the teaspoon to
mix thoroughly as much of each sample as possible. Use a
different teaspoon for each of the cups.
4. Filter the mixture with filter paper using a setup like Figure 1.
You may use cheesecloth or old, white Tshirt with the improvised
funnel from the cut upper portion of the plastic bottle.
C. Developing and Deepening Understanding
Worked Example
C. Developing and Deepening Understanding
Worked Example
Guide Questions:
1. Describe the mixture that resulted after mixing. Write your answer in Column
3 of Table 1.
2. How many phases have you observed? Write your answer and observations
in Column 4.
3. Identify the solute in each of the mixtures. Write your answers on the space
provided below.
4. What is the solvent in each of the mixtures?
5. In which mixture were you able to separate the components (solute and
solvent)
by filtration? Write your observations in column 5 of Table 1.
6. Which of the samples are solutions? Write your answers in Column
7. Do you consider solutions as homogeneous mixtures? Why? Why not?
D. MAKING GENERALIZATION
D. MAKING GENERALIZATION
Learners’ Takeaways
 The learners will write down in
the box the words or phrases
which can be associated with
the properties of solution.
 Has this lesson helped
you better understand
the properties of
solutions? If so, how?
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________1 Which of the following is a
characteristic of a solution?
a) Heterogeneous mixture
b) Solute particles larger than 1 nanometer
c) Separation of components over time
d) Homogeneous mixture
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________2. The solubility of a gas in a
liquid typically __________ as the
temperature increases.
a) Increases
b) Decreases
c) Remains the same
d) Depends on the pressure
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________3. Which of the following is a
colligative property of solutions?
a) Boiling point elevation
b) Density
c) pH
d) Both a and b
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________4. The measure of the amount
of solute dissolved in a given amount of
solvent or solution is known as:
a) Molarity
b) Molality
c) Mole fraction
d) All of the above
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________5. Osmotic pressure is the
pressure that must be applied to a solution
to:
a) Increase the boiling point
b) Decrease the freezing point
c) Prevent the flow of water molecules
through a semipermeable membrane
d) Increase the solubility of the solute
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________6. Which of the following statements
about solutions is true?
a) Solutions are always clear and transparent.
b) Solutions are stable and do not separate into
distinct layers.
c) Solutions have a uniform composition
throughout.
d) All of the above
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________7. Which of the following is the most
accurate way to express the concentration of a
solution?
a) Grams of solute per liter of solution
b) Milliliters of solute per milliliters of solution
c) Moles of solute per liter of solution
d) Grams of solute per grams of solution
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________8. The decrease in the freezing point
of a solution compared to the pure solvent is
known as:
a) Boiling point elevation
b) Freezing point depression
c) Osmotic pressure
d) Solubility
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________9. Which of the following is NOT a
factor that affects the solubility of a substance?
a) Temperature
b) Pressure
c) pH
d) Polarity
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
__________10. Which of the following statements about
the solute in a solution is true?
a) The solute is the major component in the solution.
b) The solute particles are larger than 1 nanometer in
diameter.
c) The solute particles are evenly distributed throughout
the solvent.
d) The solute particles settle out and separate from the
solution over time.
E. EVALUATING LEARNING
E. EVALUATING LEARNING
E. EVALUATING LEARNING
ANSWERS KEY
1. d) Homogeneous mixture
2. b) Decreases
3. a) Boiling point elevation
4. d) All of the above
5. c) Prevent the flow of water molecules through a semipermeable membrane
6. d) All of the above
7. c) Moles of solute per liter of solution
8. b) Freezing point depression
9. c) pH
10. c) The solute particles are evenly distributed throughout the solvent.
Reference :
•SCIENCE 7 LESSON EXEMPLAR
textbooks
•• Chang, R., & Goldsby, K. A. (2013). Chemistry (11th ed.). McGraw-Hill Education.
•• Zumdahl, S. S., & Zumdahl, S. A. (2014). Chemistry (9th ed.). Cengage Learning.
•Slide 3: Online Resources
•• Khan Academy. (n.d.). Solutions and solubility.
https://www.khanacademy.org/science/chemistry/states-of-matter-and-intermolecular-
forces/solutions-and-solubility/a/solutions-and-solubility
•• American Chemical Society. (n.d.). Properties of solutions.
https://www.acs.org/content/acs/en/education/resources/highschool/chemmatters/past-
issues/2017-2018/december-2017/properties-of-solutions.html
•• Boundless Chemistry. (n.d.). Colligative properties.
https://courses.lumenlearning.com/boundless-chemistry/chapter/colligative-properties/
•Slide 4: Journal Articles
•• Atkins, P., & de Paula, J. (2006). Atkins' Physical Chemistry (8th ed.). Oxford University
Press.
•• Raoult, F. M. (1887). Loi générale des tensions de vapeur des dissolvants. Comptes
Rendus, 104, 1430-1433.
•• Van 't Hoff, J. H. (1887). The role of osmotic pressure in the analogy between solutions
Q1_LC8.1.pptx science measuring physical

More Related Content

PPTX
Jajaudbanjshajjsnsbannans .pptx
PPTX
Solution,it's components and concetration
PPTX
Solutions
PPTX
Solutions
PPTX
Q1_LC7.3.pptx62727273738383838388372727283873737373838
PPT
solutions
PPT
presentation of solution of chemistry ppt
Jajaudbanjshajjsnsbannans .pptx
Solution,it's components and concetration
Solutions
Solutions
Q1_LC7.3.pptx62727273738383838388372727283873737373838
solutions
presentation of solution of chemistry ppt

Similar to Q1_LC8.1.pptx science measuring physical (20)

DOCX
solutions
PPTX
Dacota_blue K12: Science 7: Quarter 1: Module 1 matter
PPTX
Solutions, Types of Solutions, Properties of Solutions
PPTX
physical-properties-of-solution.pptxxxxx
PPTX
physical-properties-of-solution.pptxXXXX
PPTX
Physical Properties of solution
PPT
Properties of solutions
PDF
Solution Chemistry NCERT Syllabus Notes 12th.pdf
PPT
ccchapter13SOLUTIONSmodifiedsmbpartI.ppt
PPTX
Solutions physical pharmacy first professional
DOCX
New microsoft office word document (2)
PPT
Chemistry Unit 4 PPT
PPT
Chapter 13
PDF
SOLUTIONS (2).pdf
PPTX
General Chemistry 2 Q1L4 Solutions properties.pptx
PPTX
G6Q1 WEEK 2 SCIENCE PPT.pptxLVLLLLLLLLLLLLLLLLL
PPTX
science7q1w5typesofsolutions-201127034648.pptx
PPT
Chapter8 120319075446-phpapp01
PDF
science7q1w5typesofsolutions-201127034648.pdf
PPTX
Chapter 16 solutions
solutions
Dacota_blue K12: Science 7: Quarter 1: Module 1 matter
Solutions, Types of Solutions, Properties of Solutions
physical-properties-of-solution.pptxxxxx
physical-properties-of-solution.pptxXXXX
Physical Properties of solution
Properties of solutions
Solution Chemistry NCERT Syllabus Notes 12th.pdf
ccchapter13SOLUTIONSmodifiedsmbpartI.ppt
Solutions physical pharmacy first professional
New microsoft office word document (2)
Chemistry Unit 4 PPT
Chapter 13
SOLUTIONS (2).pdf
General Chemistry 2 Q1L4 Solutions properties.pptx
G6Q1 WEEK 2 SCIENCE PPT.pptxLVLLLLLLLLLLLLLLLLL
science7q1w5typesofsolutions-201127034648.pptx
Chapter8 120319075446-phpapp01
science7q1w5typesofsolutions-201127034648.pdf
Chapter 16 solutions
Ad

More from AizaRazonado (20)

PPTX
Prediction Research 7.pptx powerpoint presentation
PPTX
Research Process.pptx powerpoint presentation
PPTX
Q1_Science 8_Week3-Day 5.pptx science research
PPTX
Q1_Science 8_Week4-Day 5.pptx science re
PPT
Punnett Square Notes.ppt science powerpoint
PPTX
Ch 13 Genetics - Punnett Squares (R).pptx
PPTX
week 4.pptx science powerpoint presentation
PPTX
social work diass 11.pptx powerpoint presentation
PPTX
Q1_Science 8_Week3-Day 1.pptx science lesson
PPTX
770043401-q1-Ppt-pe-and-Health-7-week-1-lesson-1.pptx
PPTX
From Nanomaterial to Global Explosion.pptx
PPTX
3-measurement-161127184347.pptx in science
PPTX
PE and HEALTH march 3.pptx physical education
DOCX
SFCR1.docx school documents school forms
PPT
Methods of heat transfer_0.ppt quarter 3
PPTX
Science7_Week 3(A) 4TH QUARTER topic.pptx
PPTX
ADM SII EDUCATION LEADERS MR. BANTOG.pptx
PPTX
Q2-SCIENCE 7-LC7 LESSON 3.pptx science7less
PPTX
Q2-SCIENCE 7-LC5 LESSON 3.pptx science 7
PPTX
01integrativeartasappliedtocontemporary-230417054228-6fb7b1dc.pptx
Prediction Research 7.pptx powerpoint presentation
Research Process.pptx powerpoint presentation
Q1_Science 8_Week3-Day 5.pptx science research
Q1_Science 8_Week4-Day 5.pptx science re
Punnett Square Notes.ppt science powerpoint
Ch 13 Genetics - Punnett Squares (R).pptx
week 4.pptx science powerpoint presentation
social work diass 11.pptx powerpoint presentation
Q1_Science 8_Week3-Day 1.pptx science lesson
770043401-q1-Ppt-pe-and-Health-7-week-1-lesson-1.pptx
From Nanomaterial to Global Explosion.pptx
3-measurement-161127184347.pptx in science
PE and HEALTH march 3.pptx physical education
SFCR1.docx school documents school forms
Methods of heat transfer_0.ppt quarter 3
Science7_Week 3(A) 4TH QUARTER topic.pptx
ADM SII EDUCATION LEADERS MR. BANTOG.pptx
Q2-SCIENCE 7-LC7 LESSON 3.pptx science7less
Q2-SCIENCE 7-LC5 LESSON 3.pptx science 7
01integrativeartasappliedtocontemporary-230417054228-6fb7b1dc.pptx
Ad

Recently uploaded (20)

PDF
Warm, water-depleted rocky exoplanets with surfaceionic liquids: A proposed c...
PPT
Biochemestry- PPT ON Protein,Nitrogenous constituents of Urine, Blood, their ...
PPTX
Hypertension_Training_materials_English_2024[1] (1).pptx
PDF
Assessment of environmental effects of quarrying in Kitengela subcountyof Kaj...
PDF
Science Form five needed shit SCIENEce so
PPT
LEC Synthetic Biology and its application.ppt
PDF
GROUP 2 ORIGINAL PPT. pdf Hhfiwhwifhww0ojuwoadwsfjofjwsofjw
PPTX
ap-psych-ch-1-introduction-to-psychology-presentation.pptx
PPTX
PMR- PPT.pptx for students and doctors tt
PPTX
TORCH INFECTIONS in pregnancy with toxoplasma
PDF
Packaging materials of fruits and vegetables
PPT
Mutation in dna of bacteria and repairss
PPTX
A powerpoint on colorectal cancer with brief background
PDF
Cosmic Outliers: Low-spin Halos Explain the Abundance, Compactness, and Redsh...
PPTX
Understanding the Circulatory System……..
PPT
Computional quantum chemistry study .ppt
PPTX
Seminar Hypertension and Kidney diseases.pptx
PPTX
Presentation1 INTRODUCTION TO ENZYMES.pptx
PPT
Animal tissues, epithelial, muscle, connective, nervous tissue
PPTX
SCIENCE 4 Q2W5 PPT.pptx Lesson About Plnts and animals and their habitat
Warm, water-depleted rocky exoplanets with surfaceionic liquids: A proposed c...
Biochemestry- PPT ON Protein,Nitrogenous constituents of Urine, Blood, their ...
Hypertension_Training_materials_English_2024[1] (1).pptx
Assessment of environmental effects of quarrying in Kitengela subcountyof Kaj...
Science Form five needed shit SCIENEce so
LEC Synthetic Biology and its application.ppt
GROUP 2 ORIGINAL PPT. pdf Hhfiwhwifhww0ojuwoadwsfjofjwsofjw
ap-psych-ch-1-introduction-to-psychology-presentation.pptx
PMR- PPT.pptx for students and doctors tt
TORCH INFECTIONS in pregnancy with toxoplasma
Packaging materials of fruits and vegetables
Mutation in dna of bacteria and repairss
A powerpoint on colorectal cancer with brief background
Cosmic Outliers: Low-spin Halos Explain the Abundance, Compactness, and Redsh...
Understanding the Circulatory System……..
Computional quantum chemistry study .ppt
Seminar Hypertension and Kidney diseases.pptx
Presentation1 INTRODUCTION TO ENZYMES.pptx
Animal tissues, epithelial, muscle, connective, nervous tissue
SCIENCE 4 Q2W5 PPT.pptx Lesson About Plnts and animals and their habitat

Q1_LC8.1.pptx science measuring physical

  • 2. SCIENCE 7 First QUARTER- lc 8.1 Matatag curriculum LESSON 1: Properties of Solutions
  • 3. Properties of Solutions CONTENT The learners shall learn the properties of solutions such as solubility and reaction to litmus determine their use. LEARNING STANDARD The learners shall be able to identify the role of the solute and solvent in a solution and to express quantitatively the amount of solute present in a given volume of solution. LEARNING COMPETENCY
  • 4. By the end of the lesson, the 80 percent of the learners will be able to: 1. Define the term "solution" and identify its key components (solute and solvent). 2. Demonstrate the ability to set up and conduct laboratory experiments to investigate the properties of solutions. 3. Appreciate the importance of understanding solution properties by answering reflections. OBJECTIVES
  • 5. I. Activating Prior Knowledge "What is a solution?“ I. Activating Prior Knowledge
  • 6. I. Activating Prior Knowledge "What is a solution?“ I. Activating Prior Knowledge  Definition: A solution is a homogeneous mixture composed of two or more substances.  It consists of a solute dissolved
  • 7. I. Activating Prior Knowledge "Can you name some examples of I. Activating Prior Knowledge
  • 8. I. Activating Prior Knowledge "Can you name some examples of solutions?" I. Activating Prior Knowledge Examples may include:  Saltwater  Sugary drinks  Copper sulfate in water  Alcohol in water
  • 9. I. Activating Prior Knowledge "What are the main components of a I. Activating Prior Knowledge
  • 10. I. Activating Prior Knowledge "What are the main components of a I. Activating Prior Knowledge Solute: The substance that is dissolved in the solvent. Solvent: The dissolving medium that dissolves the solute.
  • 11.  In this lesson, we will be exploring the key properties and characteristics of solutions.  Emphasize the importance of understanding solution properties, as this knowledge is fundamental to many areas of chemistry and science. B. Establishing Purpose of the Lesson 1. LESSON PURPOSE
  • 12. B. Establishing Purpose of the Lesson 2. Unlocking Content Vocabulary: Match Type Activity Solute Solvent Solubility is the substance that is dissolved in the solvent to form a solution. is the dissolving medium that dissolves the solute to form a solution. is the ability of a substance (solute) to dissolve in a given solvent to form a solution. Solution a homogeneous mixture composed of two or more substances.
  • 13. C. Developing and Deepening Understanding  Definition: A solution is a homogeneous mixture composed of two or more substances.  It consists of a solute dissolved in a solvent. Defining Solutions
  • 14. C. Developing and Deepening Understanding  Solute: The substance that is dissolved in the solvent.  Solvent: The dissolving medium that dissolves the solute. Components of a Solution
  • 15. C. Developing and Deepening Understanding  Temperature: As temperature increases, the solubility of most solids and gases in liquids increases.  Pressure: Increasing pressure generally increases the solubility of gases in liquids.  Polarity: Polar solutes tend to dissolve in polar solvents, and non-polar solutes tend to dissolve in non-polar solvents. Factors Affecting Solubility
  • 16. C. Developing and Deepening Understanding Concentration: The measure of the amount of solute dissolved in a given amount of solvent or solution. Measuring Concentration
  • 17. C. Developing and Deepening Understanding Different ways to express concentration:  Molarity: Moles of solute per liter of solution.  Molality: Moles of solute per kilogram of solvent.  Mole fraction: The ratio of the moles of solute to the total moles of all components in a solution. Measuring Concentration
  • 18. C. Developing and Deepening Understanding  Colligative properties: Properties that depend on the concentration of the solute, not its identity. Colligative Properties
  • 19. C. Developing and Deepening Understanding  The presence of a solute in a solution increases the boiling point of the solution compared to the pure solvent  The extent of the boiling point elevation depends on the concentration of the solute. Boiling Point Elevation
  • 20. C. Developing and Deepening Understanding  The presence of a solute in a solution decreases the freezing point of the solution compared to the pure solvent.  The extent of the freezing point depression depends on the concentration of the solute. Freezing Point Depression
  • 21. C. Developing and Deepening Understanding  Osmotic pressure is the pressure that must be applied to a solution to prevent the flow of water molecules through a semipermeable membrane.  Osmotic pressure depends on the concentration of the solute in the solution. Osmotic Pressure
  • 22. C. Developing and Deepening Understanding Worked Example Properties of Solutions The learners will bring the following materials to perform a simple activity that highlights the properties of solution. Materials: sugar transparent plastic cups of similar sizes salt 6 cups of water mongo seeds 6 pieces spoons powdered juice cheesecloth
  • 23. C. Developing and Deepening Understanding Worked Example Properties of Solutions Procedure: 1. Predict which among the given samples will dissolve in water. Write your predictions in Column 2 of Table 1. 2. Put one cup of water in each of the cups. 3. Add ½ teaspoon of each of the six samples. Use the teaspoon to mix thoroughly as much of each sample as possible. Use a different teaspoon for each of the cups. 4. Filter the mixture with filter paper using a setup like Figure 1. You may use cheesecloth or old, white Tshirt with the improvised funnel from the cut upper portion of the plastic bottle.
  • 24. C. Developing and Deepening Understanding Worked Example
  • 25. C. Developing and Deepening Understanding Worked Example Guide Questions: 1. Describe the mixture that resulted after mixing. Write your answer in Column 3 of Table 1. 2. How many phases have you observed? Write your answer and observations in Column 4. 3. Identify the solute in each of the mixtures. Write your answers on the space provided below. 4. What is the solvent in each of the mixtures? 5. In which mixture were you able to separate the components (solute and solvent) by filtration? Write your observations in column 5 of Table 1. 6. Which of the samples are solutions? Write your answers in Column 7. Do you consider solutions as homogeneous mixtures? Why? Why not?
  • 26. D. MAKING GENERALIZATION D. MAKING GENERALIZATION Learners’ Takeaways  The learners will write down in the box the words or phrases which can be associated with the properties of solution.  Has this lesson helped you better understand the properties of solutions? If so, how?
  • 27. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________1 Which of the following is a characteristic of a solution? a) Heterogeneous mixture b) Solute particles larger than 1 nanometer c) Separation of components over time d) Homogeneous mixture
  • 28. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________2. The solubility of a gas in a liquid typically __________ as the temperature increases. a) Increases b) Decreases c) Remains the same d) Depends on the pressure
  • 29. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________3. Which of the following is a colligative property of solutions? a) Boiling point elevation b) Density c) pH d) Both a and b
  • 30. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________4. The measure of the amount of solute dissolved in a given amount of solvent or solution is known as: a) Molarity b) Molality c) Mole fraction d) All of the above
  • 31. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________5. Osmotic pressure is the pressure that must be applied to a solution to: a) Increase the boiling point b) Decrease the freezing point c) Prevent the flow of water molecules through a semipermeable membrane d) Increase the solubility of the solute
  • 32. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________6. Which of the following statements about solutions is true? a) Solutions are always clear and transparent. b) Solutions are stable and do not separate into distinct layers. c) Solutions have a uniform composition throughout. d) All of the above
  • 33. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________7. Which of the following is the most accurate way to express the concentration of a solution? a) Grams of solute per liter of solution b) Milliliters of solute per milliliters of solution c) Moles of solute per liter of solution d) Grams of solute per grams of solution
  • 34. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________8. The decrease in the freezing point of a solution compared to the pure solvent is known as: a) Boiling point elevation b) Freezing point depression c) Osmotic pressure d) Solubility
  • 35. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________9. Which of the following is NOT a factor that affects the solubility of a substance? a) Temperature b) Pressure c) pH d) Polarity
  • 36. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING __________10. Which of the following statements about the solute in a solution is true? a) The solute is the major component in the solution. b) The solute particles are larger than 1 nanometer in diameter. c) The solute particles are evenly distributed throughout the solvent. d) The solute particles settle out and separate from the solution over time.
  • 37. E. EVALUATING LEARNING E. EVALUATING LEARNING E. EVALUATING LEARNING ANSWERS KEY 1. d) Homogeneous mixture 2. b) Decreases 3. a) Boiling point elevation 4. d) All of the above 5. c) Prevent the flow of water molecules through a semipermeable membrane 6. d) All of the above 7. c) Moles of solute per liter of solution 8. b) Freezing point depression 9. c) pH 10. c) The solute particles are evenly distributed throughout the solvent.
  • 38. Reference : •SCIENCE 7 LESSON EXEMPLAR textbooks •• Chang, R., & Goldsby, K. A. (2013). Chemistry (11th ed.). McGraw-Hill Education. •• Zumdahl, S. S., & Zumdahl, S. A. (2014). Chemistry (9th ed.). Cengage Learning. •Slide 3: Online Resources •• Khan Academy. (n.d.). Solutions and solubility. https://www.khanacademy.org/science/chemistry/states-of-matter-and-intermolecular- forces/solutions-and-solubility/a/solutions-and-solubility •• American Chemical Society. (n.d.). Properties of solutions. https://www.acs.org/content/acs/en/education/resources/highschool/chemmatters/past- issues/2017-2018/december-2017/properties-of-solutions.html •• Boundless Chemistry. (n.d.). Colligative properties. https://courses.lumenlearning.com/boundless-chemistry/chapter/colligative-properties/ •Slide 4: Journal Articles •• Atkins, P., & de Paula, J. (2006). Atkins' Physical Chemistry (8th ed.). Oxford University Press. •• Raoult, F. M. (1887). Loi générale des tensions de vapeur des dissolvants. Comptes Rendus, 104, 1430-1433. •• Van 't Hoff, J. H. (1887). The role of osmotic pressure in the analogy between solutions