Inv 3-1 Vocab
In a solution, what is the material that gets dissolved called?
solute
When we tested Kool-Aid, you could tell which pitcher of Kool-Aid was more concentrated. What 3 ways could you determine which kool-aid was more concentrated?
- darker color
- stronger/sweeter taste
- stronger scent
What is the amount of stuff in a certain amount of space?
Density
(Dense City, MA) :-)
When heat energy is removed from liquid water, the water changes from a liquid to a _____.
solid (ice)
What is the amount of space taken up by matter?
volume
What are 2 ways to make a solution more concentrated?
- use more solute (solid)
- use less solvent (liquid)
Which solution would be more concentrated?
- Solution A = 20 ml kool-aid + 100 ml water
- Solution B = 15 ml kool-aid + 50 ml water
Solution B
A = 20/100
B = 15/50 = 30 /100
Solutions that are less dense will be more _____ and will be found at the ____ of a container.
diluted
at the top of a container
The process that changes water from a liquid to a gas is called ___.
evaporation
What is the process of a solid becoming smaller and smaller until it takes on the properties of a liquid?
dissolve
What are the 3 main steps to using a balance to determine the most concentrated solution?
1. take even amounts of each solution
2. compare them on the balance (or use gram pieces)
3. the heavier solution is more concentrated
If I throw a scoop of lemonade in a pool and then taste the pool water, will the "lemonade" be concentrated or diluted?
more diluted
to make a solution less concentrated (water it down)
What is dilute?
When heat energy is removed from water vapor, the gas changes from a gas to a _____.
For 500 BONUS points, what is this process called?
liquid
BONUS: condensation
In a solution, what is the part that does the dissolving?
solvent
What are 2 ways to dilute a solution?
- use less solute (solid)
- add more solvent (liquid)
Put these solutions in order from
most diluted - - - - - - - - - - - -> most concentrated (least dense) (most dense)
#1 = 16 ml salt + 100 ml water #2 = 50 ml salt + 100 ml water #3 = 28 ml salt + 100 ml water #4 = 10 ml salt + 100 ml water
4, 1, 3, 2
Solutions that are more dense will be more _____ and will be found at the ____ of a container.
more concentrated
at the bottom of the container
When heat energy is added to liquid water, the water changes from a liquid to a _____.
gas
What is the amount of material dissolved in a certain amount of liquid?
concentration
If you have the recipes for two solutions, what are 3 ways you can tell which one is more concentrated?
1. use a balance
2. ratios
3. models or pictures
Explain why equal volumes are necessary when comparing two or more solutions?
Solutions with different volumes will automatically have different masses. To determine which solution is most concentrated, you need to make sure they start with the same volume.
What is the process called that adds heat energy to water in solid form, the ice changes from a solid to a liquid.
melting