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Inv 3-1 Vocab
Concentration
Which is more Concentrated?
Inv 3-3 & 3-4 Vocab
States of Matter
100

In a solution, what is the material that gets dissolved called?

solute

100

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

100
If I put 5ml of lemonade mix in container 1(filled with 100mL of water) and 30mL of lemonade in container 2 (filled with 100mL of water), which is more concentrated?
What is "container 1"?
100

What is the amount of stuff in a certain amount of space? 

Density

(Dense City, MA) :-)

100

When heat energy is removed from liquid water, the water changes from a liquid to a _____.

solid (ice)

200

What is the amount of space taken up by matter?

volume

200

What are 2 ways to make a solution more concentrated?

- use more solute (solid)

- use less solvent (liquid)

200

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

200

Solutions that are less dense will be more _____ and will be found at the ____ of a container.

diluted

at the top of a container 

200

The process that changes water from a liquid to a gas is called ___.

evaporation

300

What is the process of a solid becoming smaller and smaller until it takes on the properties of a liquid?

dissolve

300

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

300

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

300

to make a solution less concentrated (water it down)

What is dilute?

300

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

400

In a solution, what is the part that does the dissolving?

solvent

400

What are 2 ways to dilute a solution?

- use less solute (solid)

- add more solvent (liquid)

400

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

400

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

400

When heat energy is added to liquid water, the water changes from a liquid to a _____.

gas

500

What is the amount of material dissolved in a certain amount of liquid?

concentration

500

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

500
Solution 1:1 scoop Kool-Aid, 25 mL water Solution 2: 2 scoops Kool-Aid, 75 mL water Which is more diluted?
What is solution 2?
500

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.

500

What is the process called that adds heat energy to water in solid form, the ice changes from a solid to a liquid.

melting