1. Mixtures, Solubility, and Soluions
Chapter 13
Material on Midterm—LAST CHAPTER

2. 1-Substances and Mixtures
Matter: Substances and Mixtures
Matter is anything that has __________ and takes up ___________
Nearly all types of matter can be sorted into just two major categories—_____________ and _____________
mass
space
substances
mixtures

3. 13.1 notes- page 87 Put the green table toward the top of the page.
Use pp to fill the table out with your partner.
Your picture of the lab should be on p 86

6. Element or compound?

7. Full sentences for full credit!
Writing Prompt #1 (of 3)
Write the answer on the left page of your notebook
Describe two ways that compounds are different than mixtures.
Full sentences for full credit!

8. 1-Substances and Mixtures
The Ratio of Elements in a compound
A compound is a pure substance
The ratios in a compound are ALWAYS THE ________
EX: Water is ____________
The water to oxygen mass has a ratio of 1:8
Same in 1 drop to 100 gallons
Different ratio? _________________!
SAME
H2O
NOT WATER

9. 1-Substances and Mixtures
What is a mixture?
A __________ is two or more substances that are physically blended but are not chemically bonded together
No chemical reaction
No compound formed
Each substance keeps its original ___________
The Ratio of Components in a Mixture
No fixed ratio—_____ always the same
mixture
identity
not

10. 1-Classifying matter Types of mixtures homogeneous mixture evenly
A ___________________________ is a type of mixture in which the individual substance are ____________ mixed
Example: Apple juice, salt water
Appears to be a single substance
Cannot be filtered, cannot scatter light
Also known as a solution
homogeneous mixture
evenly

11. 2- Properties of Solutions
Parts of a solution
The solute is the substance that is dissolved
The solvent is the substance that exists in the greatest quantity in a solution

12. 1-Substances and Mixtures
What is a suspension?
A suspension is a mixture in which particles are large enough to be dispersed, but they settle out over time
Can be _______________, can scatter __________
What is a colloid?
A colloid is a mixture in which the particles are dispersed throughout but are not heavy enough to settle out
___________ be filtered, _______ scatter
light
filtered
light
Cannot
can

13. Summary video No Yes No Yes Mixture Type Solute particle size
Can it be filtered?
Does it scatter light?
Solution
Small
Suspension
Large
Colloid
Medium No
Yes No
Yes

14. 2- Properties of Solutions
Concentration of Solutions
The concentration is the __________ of a particular solute in a given amount of solvent
Units: g/mL
Lots of solute  __________________
Little solute _______________
amount
concentrated
dilute

15. 2- Properties of Solutions
Solubility
_______________ is the maximum amount of solute that can dissolve in a given amount of solvent at a given temperature and pressure
Saturated solutions are solutions that contain the ______________ amount of solute that the solution can hold at a given temperature and pressure
Unsaturated solutions are solutions that can still _____________________ solute at a given temperature and pressure
maximum
dissolve more

16. 2- Properties of Solutions
How does temperature affect solubility?
For liquid solvents
A higher temperature ____________ the solubility of a gas
A higher temperature _____________ the solubility of a solid or liquid
How does pressure affect solubility?
A higher pressure ______________ the solubility of a gas
decreases
increases
increases

17. 2- Properties of Solutions
What is a solubility curve?
This is a graph that shows how ___________________ of a substance can change with _______________
Let’s read the graph!
X-axis – ___________________
Y-axis – ___________________
Questions to solve
At what temperature can a certain solute amount dissolve?
How much solute can dissolve at a certain temperature?
solubility
temperature
Temperature
Solubility

18. To what temperature would water have to be heated if I wanted to dissolve 70 grams of NH3?
To what temperature would water have to be heated if I wanted to dissolve 70 grams of NH4Cl?
How many grams of KClO3 can be dissolved into 100 g H2O heated to 70°C?
How many grams of KClO3 can be dissolved into 100g H2O heated to 45°C?
10˚C
85˚C
35 grams
20 grams

19. 2- Properties of Solutions
How fast a solute dissolves
All speed up ______________
dissolving

20. Full sentences for full credit!
Writing Prompt #3 (of 3)
Write the answer on your purple sheet.
Give two ways that I can increase the speed of dissolving a sugar cube in a glass of water.
Full sentences for full credit!