PROCEDURE
1. Use a magnifying glass to observe crystals of sodium chloride (table salt). Describe or draw their appearance in your data table.
2. Taste a few crystals and describe the taste in your data table.
3. Repeat step I with sodium bicarbonate (baking soda)
4. Mass 1 g sodium chloride, and dissolve in 20 mL water in a 100 mL beaker. Stir the mixture until the solid has completely dissolved. Observe the mixture during the dissolving process.
5. Place a small amount of the mixture on a shallow glass dish called a watch glass. Put on safety goggles. Carefully heat the watch glass on the stove over medium heat until the liquid just boils away. Remove the watch glass from the heat and allow to cool.
6. With the magnifying glass, observe the solid remaining on the watch glass. Taste a few of the crystals. In your data table, describe their appearance and taste
7. Repeat steps 4-5 with 1 g sodium bicarbonate, but use 20 mL vinegar instead of water. In your data table, note the behavior of the mixture during the dissolving process.
8. Observe the solid remaining on the watch glass with the magnifying glass, and describe in your data table. Do not taste this sample.
9. To the solid remaining in step 8, add a small amount of vinegar. In your data table. describe the behavior of the mixture as the solid dissolves.
PROCEDURE
1. Use a magnifying glass to observe crystals of sodium chloride (table salt). Describe or draw their appearance in your data table.
2. Taste a few crystals and describe the taste in your data table.
3. Repeat step I with sodium bicarbonate (baking soda)
4. Mass 1 g sodium chloride, and dissolve in 20 mL water in a 100 mL beaker. Stir the mixture until the solid has completely dissolved. Observe the mixture during the dissolving process.
5. Place a small amount of the mixture on a shallow glass dish called a watch glass. Put on safety goggles. Carefully heat the watch glass on the stove over medium heat until the liquid just boils away. Remove the watch glass from the heat and allow to cool.
6. With the magnifying glass, observe the solid remaining on the watch glass. Taste a few of the crystals. In your data table, describe their appearance and taste
7. Repeat steps 4-5 with 1 g sodium bicarbonate, but use 20 mL vinegar instead of water. In your data table, note the behavior of the mixture during the dissolving process.
8. Observe the solid remaining on the watch glass with the magnifying glass, and describe in your data table. Do not taste this sample.
9. To the solid remaining in step 8, add a small amount of vinegar. In your data table. describe the behavior of the mixture as the solid dissolves.
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PROCEDURE
1. Use a magnifying glass to observe crystals of sodium chloride (table salt). Describe or draw their appearance in your data table.
2. Taste a few crystals and describe the taste in your data table.
3. Repeat step I with sodium bicarbonate (baking soda)
4. Mass 1 g sodium chloride, and dissolve in 20 mL water in a 100 mL beaker. Stir the mixture until the solid has completely dissolved. Observe the mixture during the dissolving process.
5. Place a small amount of the mixture on a shallow glass dish called a watch glass. Put on safety goggles. Carefully heat the watch glass on the stove over medium heat until the liquid just boils away. Remove the watch glass from the heat and allow to cool.
6. With the magnifying glass, observe the solid remaining on the watch glass. Taste a few of the crystals. In your data table, describe their appearance and taste
7. Repeat steps 4-5 with 1 g sodium bicarbonate, but use 20 mL vinegar instead of water. In your data table, note the behavior of the mixture during the dissolving process.
8. Observe the solid remaining on the watch glass with the magnifying glass, and describe in your data table. Do not taste this sample.
9. To the solid remaining in step 8, add a small amount of vinegar. In your data table. describe the behavior of the mixture as the solid dissolves.
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