Aleksza/Ruscher Chemistry 2013-14

NAME:_________________________________________MOD:_________Binder #_______

LAB PARTNERS:________________________________________Date:_______________

Soluble [SAHL-yoo-uh-bul]: able to dissolve in a solventNon-Soluble: not able to be dissolved in a solvent

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REMEMBER THE SCIENTIFIC METHOD??

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STATION #1: What happens when you mix a SOLID and a LIQUID?

Materials: Beaker, Stirrer, Powdered Cooper Sulfate, water, scoop

Safety: Googles required, wash hands after experiment

Procedures: (Check off as you complete each step)

____1. Pour some water into the beaker.____2. Add a small amount of Cu(SO4) to the water.____3. Stir well.____4. Record your results.____5. Empty solution in the sink and rinse your beaker & stirrer____6. Move to a new station if not done with lab. Wash hands if done with lab.

STATION #2: What happens when you mix a SOLID and a LIQUID?

Materials: Beaker, water, NaCl crystals, scoop, stirrer Safety: goggles needed Procedures : (Check off as you complete each step) ____1. Pour some water into the beaker.____2. Add a small amount of NaCl to the water.____3. Stir well.____4. Record your results.____5. Empty solution in the sink and rinse your beaker & stirrer____6. Move to a new station if not done with lab. Wash hands if done with lab.

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STATION #3: What happens when you mix a LIQUID and a LIQUID? Materials: Beaker, water, Oil,

stirrer Safety: goggles needed Procedures : (Check off as you

complete each step) ____1. Pour some water into the beaker.____2. Add a small amount of Oil to the water.____3. Stir well. ____4. Record your results.____5. Empty solution in the sink and rinse your beaker & stirrer____6. Move to a new station if not done with lab. Wash hands if done with lab.

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STATION #4: What happens when you mix a LIQUID and a LIQUID? Materials: Beaker, water, Ethanol (alcohol),stirrer Safety: goggles needed Procedures : (Check off as you complete each step) ____1. Pour some water into the beaker.____2. Add a small amount of Alcohol to the water.____3. Stir well. ____4. Record your results.____5. Empty solution in the sink and rinse your beaker & stirrer____6. Move to a new station if not done with lab. Wash hands if done with lab.

STATION #5: What happens when you mix a LIQUID and a LIQUID? Materials: Beaker, water, Vinegar, stirrer Safety: goggles needed Procedures : (Check off as you complete each step) ____1. Pour some water into the beaker.____2. Add a small amount of Vinegar to the water.____3. Stir well. ____4. Record your results.____5. Empty solution in the sink and rinse your beaker & stirrer____6. Move to a new station if not done with lab. Wash hands if done with lab.

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STATION #6: What happens when you mix a GAS and a LIQUID?

Let’s see if a gas dissolves in a liquid. The gas we most often use is carbon dioxide (CO2). Carbon dioxide is one of the gases of air. It is also a gas we exhale.

How can we tell when Carbon dioxide is present? Carbon dioxide mixed with water is slightly acidic. When Bromothymol Blue(indicator), normally blue in color, is added it will turn the solution a yellowish/green color.

Materials: Beaker, water, Bromothymol Blue(indicator), stirrer, straw, you

Safety: goggles needed, DO NOT INGEST (swallow) the indicator! Procedures : (Check off as you complete each step)

_____1. Pour some water into one of the beakers.

_____2. Describe the color of the water:_______________________________________

_____3. Put a few drops of the indicator in the beaker and stir.. _____4. Describe the color of the water:_______________________________________

_____5. Using the straw, blow into the beaker. (DO NOT INHALE the solution!)

_____6. The water color:

A. Stayed the same as in #4 B. Turned a different color. (color:________)

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Fill in the Blank: Complete each statement using a term or terms from the list below. Write your answers in the spaces provided. Some words may be used more than once.

colorless immiscible salt watersolute liquid solventoil and water miscible water and alcoholstates of matter mixture

1. A liquid solution is a special kind of ____________________________.

2. The main parts of a liquid solution are the ____________________ and ________________.

3 The solute of a liquid solution may be any of the three _________ ___ __________.

4. The solvent of a liquid solution is always a __________________.

5. Some liquid solutions have a color and others are ___________________.

6. Two examples of liquid solutions are ____________ ____________________ and________________ ____ __________________.

7. Liquids that form a liquid solution are said to be _______________________.

8. An example of a miscible liquids are __________________ ___ _______________.

9. The word that means not miscible is ________________________.

10. An example of immiscible liquids is _____________________ ____ _______________.

Matching: M.atch each term in Column A with its description in Column B. Write the correct letter in the space provided

Column A Column B

_____1. Miscible A. means “able to dissolve”

_____2. Soluble B. mixable

_____3. Solute C. special kind of mixture

_____4. Solvent D. liquid part of a liquid solution

_____5. Liquid solution E. can be a solid, liquid or gas

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